Merge "Only use DecorContext with main activity windows."
diff --git a/Android.mk b/Android.mk
index 51dfa57..d3e1cf5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -499,6 +499,7 @@
 	frameworks/base/graphics/java/android/graphics/PointF.aidl \
 	frameworks/base/graphics/java/android/graphics/RectF.aidl \
 	frameworks/base/graphics/java/android/graphics/Rect.aidl \
+	frameworks/base/graphics/java/android/graphics/drawable/Icon.aidl \
 	frameworks/base/core/java/android/accounts/AuthenticatorDescription.aidl \
 	frameworks/base/core/java/android/accounts/Account.aidl \
 	frameworks/base/core/java/android/app/admin/SystemUpdatePolicy.aidl \
diff --git a/api/current.txt b/api/current.txt
index 6610e37..ec65b25 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -3504,6 +3504,7 @@
     method public boolean releaseInstance();
     method public final deprecated void removeDialog(int);
     method public void reportFullyDrawn();
+    method public android.view.DropPermissions requestDropPermissions(android.view.DragEvent);
     method public final void requestPermissions(java.lang.String[], int);
     method public boolean requestVisibleBehind(boolean);
     method public final boolean requestWindowFeature(int);
@@ -29146,6 +29147,9 @@
     method public android.print.PrinterInfo build();
     method public android.print.PrinterInfo.Builder setCapabilities(android.print.PrinterCapabilitiesInfo);
     method public android.print.PrinterInfo.Builder setDescription(java.lang.String);
+    method public android.print.PrinterInfo.Builder setHasCustomPrinterIcon();
+    method public android.print.PrinterInfo.Builder setIconResourceId(int);
+    method public android.print.PrinterInfo.Builder setInfoIntent(android.app.PendingIntent);
     method public android.print.PrinterInfo.Builder setName(java.lang.String);
     method public android.print.PrinterInfo.Builder setStatus(int);
   }
@@ -29166,6 +29170,10 @@
 
 package android.printservice {
 
+  public class CustomPrinterIconCallback {
+    method public boolean onCustomPrinterIconLoaded(android.graphics.drawable.Icon);
+  }
+
   public final class PrintDocument {
     method public android.os.ParcelFileDescriptor getData();
     method public android.print.PrintDocumentInfo getInfo();
@@ -29221,6 +29229,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -39596,7 +39605,6 @@
     method public boolean getResult();
     method public float getX();
     method public float getY();
-    method public android.view.DropPermissions requestDropPermissions();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final int ACTION_DRAG_ENDED = 4; // 0x4
     field public static final int ACTION_DRAG_ENTERED = 5; // 0x5
diff --git a/api/system-current.txt b/api/system-current.txt
index ff37365..e992a77 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -3609,6 +3609,7 @@
     method public boolean releaseInstance();
     method public final deprecated void removeDialog(int);
     method public void reportFullyDrawn();
+    method public android.view.DropPermissions requestDropPermissions(android.view.DragEvent);
     method public final void requestPermissions(java.lang.String[], int);
     method public boolean requestVisibleBehind(boolean);
     method public final boolean requestWindowFeature(int);
@@ -31156,6 +31157,9 @@
     method public android.print.PrinterInfo build();
     method public android.print.PrinterInfo.Builder setCapabilities(android.print.PrinterCapabilitiesInfo);
     method public android.print.PrinterInfo.Builder setDescription(java.lang.String);
+    method public android.print.PrinterInfo.Builder setHasCustomPrinterIcon();
+    method public android.print.PrinterInfo.Builder setIconResourceId(int);
+    method public android.print.PrinterInfo.Builder setInfoIntent(android.app.PendingIntent);
     method public android.print.PrinterInfo.Builder setName(java.lang.String);
     method public android.print.PrinterInfo.Builder setStatus(int);
   }
@@ -31176,6 +31180,10 @@
 
 package android.printservice {
 
+  public class CustomPrinterIconCallback {
+    method public boolean onCustomPrinterIconLoaded(android.graphics.drawable.Icon);
+  }
+
   public final class PrintDocument {
     method public android.os.ParcelFileDescriptor getData();
     method public android.print.PrintDocumentInfo getInfo();
@@ -31231,6 +31239,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -41950,7 +41959,6 @@
     method public boolean getResult();
     method public float getX();
     method public float getY();
-    method public android.view.DropPermissions requestDropPermissions();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final int ACTION_DRAG_ENDED = 4; // 0x4
     field public static final int ACTION_DRAG_ENTERED = 5; // 0x5
diff --git a/api/test-current.txt b/api/test-current.txt
index 883dd31..42a6a86 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -3504,6 +3504,7 @@
     method public boolean releaseInstance();
     method public final deprecated void removeDialog(int);
     method public void reportFullyDrawn();
+    method public android.view.DropPermissions requestDropPermissions(android.view.DragEvent);
     method public final void requestPermissions(java.lang.String[], int);
     method public boolean requestVisibleBehind(boolean);
     method public final boolean requestWindowFeature(int);
@@ -29135,6 +29136,7 @@
     method public android.print.PrinterId getId();
     method public java.lang.String getName();
     method public int getStatus();
+    method public android.graphics.drawable.Drawable loadIcon(android.content.Context);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.print.PrinterInfo> CREATOR;
     field public static final int STATUS_BUSY = 2; // 0x2
@@ -29148,6 +29150,9 @@
     method public android.print.PrinterInfo build();
     method public android.print.PrinterInfo.Builder setCapabilities(android.print.PrinterCapabilitiesInfo);
     method public android.print.PrinterInfo.Builder setDescription(java.lang.String);
+    method public android.print.PrinterInfo.Builder setHasCustomPrinterIcon();
+    method public android.print.PrinterInfo.Builder setIconResourceId(int);
+    method public android.print.PrinterInfo.Builder setInfoIntent(android.app.PendingIntent);
     method public android.print.PrinterInfo.Builder setName(java.lang.String);
     method public android.print.PrinterInfo.Builder setStatus(int);
   }
@@ -29168,6 +29173,10 @@
 
 package android.printservice {
 
+  public class CustomPrinterIconCallback {
+    method public boolean onCustomPrinterIconLoaded(android.graphics.drawable.Icon);
+  }
+
   public final class PrintDocument {
     method public android.os.ParcelFileDescriptor getData();
     method public android.print.PrintDocumentInfo getInfo();
@@ -29223,6 +29232,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -39598,7 +39608,6 @@
     method public boolean getResult();
     method public float getX();
     method public float getY();
-    method public android.view.DropPermissions requestDropPermissions();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final int ACTION_DRAG_ENDED = 4; // 0x4
     field public static final int ACTION_DRAG_ENTERED = 5; // 0x5
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index 6d72059..800ebc6 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -31,6 +31,8 @@
 import android.transition.TransitionManager;
 import android.util.ArrayMap;
 import android.util.SuperNotCalledException;
+import android.view.DragEvent;
+import android.view.DropPermissions;
 import android.view.Window.WindowControllerCallback;
 import android.widget.Toolbar;
 
@@ -6336,6 +6338,21 @@
         mActivityTransitionState.startPostponedEnterTransition();
     }
 
+    /**
+     * Create {@link DropPermissions} object bound to this activity and controlling the access
+     * permissions for content URIs associated with the {@link DragEvent}.
+     * @param event Drag event
+     * @return The DropPermissions object used to control access to the content URIs. Null if
+     * no content URIs are associated with the event or if permissions could not be granted.
+     */
+    public DropPermissions requestDropPermissions(DragEvent event) {
+        DropPermissions dropPermissions = DropPermissions.obtain(event);
+        if (dropPermissions != null && dropPermissions.take(getActivityToken())) {
+            return dropPermissions;
+        }
+        return null;
+    }
+
     // ------------------ Internal API ------------------
 
     final void setParent(Activity parent) {
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 1b08273..3a3aa92 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -1845,6 +1845,15 @@
             return true;
         }
 
+        case GET_URI_PERMISSION_OWNER_FOR_ACTIVITY_TRANSACTION: {
+            data.enforceInterface(IActivityManager.descriptor);
+            IBinder activityToken = data.readStrongBinder();
+            IBinder perm = getUriPermissionOwnerForActivity(activityToken);
+            reply.writeNoException();
+            reply.writeStrongBinder(perm);
+            return true;
+        }
+
         case GRANT_URI_PERMISSION_FROM_OWNER_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             IBinder owner = data.readStrongBinder();
@@ -5121,6 +5130,19 @@
         return res;
     }
 
+    public IBinder getUriPermissionOwnerForActivity(IBinder activityToken) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        data.writeInterfaceToken(IActivityManager.descriptor);
+        data.writeStrongBinder(activityToken);
+        mRemote.transact(GET_URI_PERMISSION_OWNER_FOR_ACTIVITY_TRANSACTION, data, reply, 0);
+        reply.readException();
+        IBinder res = reply.readStrongBinder();
+        data.recycle();
+        reply.recycle();
+        return res;
+    }
+
     public void grantUriPermissionFromOwner(IBinder owner, int fromUid, String targetPkg,
             Uri uri, int mode, int sourceUserId, int targetUserId) throws RemoteException {
         Parcel data = Parcel.obtain();
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 0ecf223..61b1bc8 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -363,6 +363,7 @@
     public String getProviderMimeType(Uri uri, int userId) throws RemoteException;
 
     public IBinder newUriPermissionOwner(String name) throws RemoteException;
+    public IBinder getUriPermissionOwnerForActivity(IBinder activityToken) throws RemoteException;
     public void grantUriPermissionFromOwner(IBinder owner, int fromUid, String targetPkg,
             Uri uri, int mode, int sourceUserId, int targetUserId) throws RemoteException;
     public void revokeUriPermissionFromOwner(IBinder owner, Uri uri,
@@ -920,4 +921,5 @@
     int KILL_PACKAGE_DEPENDENTS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 354;
     int ENTER_PICTURE_IN_PICTURE_MODE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 355;
     int SET_VR_MODE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 356;
+    int GET_URI_PERMISSION_OWNER_FOR_ACTIVITY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION + 357;
 }
diff --git a/core/java/android/print/IPrintManager.aidl b/core/java/android/print/IPrintManager.aidl
index 8fa7ab9..9a80e37 100644
--- a/core/java/android/print/IPrintManager.aidl
+++ b/core/java/android/print/IPrintManager.aidl
@@ -16,6 +16,7 @@
 
 package android.print;
 
+import android.graphics.drawable.Icon;
 import android.os.Bundle;
 import android.print.IPrinterDiscoveryObserver;
 import android.print.IPrintDocumentAdapter;
@@ -53,6 +54,19 @@
     void stopPrinterDiscovery(in IPrinterDiscoveryObserver observer, int userId);
     void validatePrinters(in List<PrinterId> printerIds, int userId);
     void startPrinterStateTracking(in PrinterId printerId, int userId);
+
+    /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @param userId the id of the user requesting the printer
+     * @return the custom icon to be used for the printer or null if the icon is
+     *         not yet available
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    Icon getCustomPrinterIcon(in PrinterId printerId, int userId);
+
     void stopPrinterStateTracking(in PrinterId printerId, int userId);
     void destroyPrinterDiscoverySession(in IPrinterDiscoveryObserver observer,
             int userId);
diff --git a/core/java/android/print/IPrintSpooler.aidl b/core/java/android/print/IPrintSpooler.aidl
index b7cfbea..c3625b8 100644
--- a/core/java/android/print/IPrintSpooler.aidl
+++ b/core/java/android/print/IPrintSpooler.aidl
@@ -17,9 +17,11 @@
 package android.print;
 
 import android.content.ComponentName;
+import android.graphics.drawable.Icon;
 import android.os.ParcelFileDescriptor;
 import android.print.IPrintSpoolerClient;
 import android.print.IPrintSpoolerCallbacks;
+import android.print.PrinterId;
 import android.print.PrinterInfo;
 import android.print.PrintAttributes;
 import android.print.PrintJobId;
@@ -58,6 +60,39 @@
      */
     void setStatus(in PrintJobId printJobId, in CharSequence status);
 
+    /**
+     * Handle that a custom icon for a printer was loaded.
+     *
+     * @param printerId the id of the printer the icon belongs to
+     * @param icon the icon that was loaded
+     * @param callbacks the callback to call once icon is stored in case
+     * @param sequence the sequence number of the call
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    void onCustomPrinterIconLoaded(in PrinterId printerId, in Icon icon,
+            in IPrintSpoolerCallbacks callbacks, in int sequence);
+
+    /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @param callbacks the callback to call once icon is retrieved
+     * @param sequence the sequence number of the call
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    void getCustomPrinterIcon(in PrinterId printerId,
+            in IPrintSpoolerCallbacks callbacks, in int sequence);
+
+    /**
+     * Clear all state from the custom printer icon cache.
+     *
+     * @param callbacks the callback to call once cache is cleared
+     * @param sequence the sequence number of the call
+     */
+    void clearCustomPrinterIconCache(in IPrintSpoolerCallbacks callbacks,
+            in int sequence);
+
     void setPrintJobTag(in PrintJobId printJobId, String tag, IPrintSpoolerCallbacks callback,
             int sequence);
     void writePrintJobData(in ParcelFileDescriptor fd, in PrintJobId printJobId);
diff --git a/core/java/android/print/IPrintSpoolerCallbacks.aidl b/core/java/android/print/IPrintSpoolerCallbacks.aidl
index 45c5332..23d706a 100644
--- a/core/java/android/print/IPrintSpoolerCallbacks.aidl
+++ b/core/java/android/print/IPrintSpoolerCallbacks.aidl
@@ -16,7 +16,9 @@
 
 package android.print;
 
+import android.graphics.drawable.Icon;
 import android.print.PrintJobInfo;
+import android.print.PrinterId;
 import java.util.List;
 
 /**
@@ -32,4 +34,27 @@
     void onSetPrintJobStateResult(boolean success, int sequence);
     void onSetPrintJobTagResult(boolean success, int sequence);
     void onGetPrintJobInfoResult(in PrintJobInfo printJob, int sequence);
+
+    /**
+     * Deliver the result of a request of a custom printer icon.
+     *
+     * @param icon the icon that was retrieved, or null if no icon could be
+     *             found
+     * @param sequence the sequence number of the call to get the icon
+     */
+    void onGetCustomPrinterIconResult(in Icon icon, int sequence);
+
+    /**
+     * Declare that the print spooler cached a custom printer icon.
+     *
+     * @param sequence the sequence number of the call to cache the icon
+     */
+    void onCustomPrinterIconCached(int sequence);
+
+    /**
+     * Declare that the custom printer icon cache was cleared.
+     *
+     * @param sequence the sequence number of the call to clear the cache
+     */
+    void customPrinterIconCacheCleared(int sequence);
 }
diff --git a/core/java/android/print/PageRange.java b/core/java/android/print/PageRange.java
index 8bc157a..57c7718 100644
--- a/core/java/android/print/PageRange.java
+++ b/core/java/android/print/PageRange.java
@@ -16,6 +16,8 @@
 
 package android.print;
 
+import android.annotation.IntRange;
+import android.annotation.NonNull;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -42,7 +44,7 @@
      * @throws IllegalArgumentException If start is less than zero or end
      * is less than zero or start greater than end.
      */
-    public PageRange(int start, int end) {
+    public PageRange(@IntRange(from = 0) int start, @IntRange(from = 0) int end) {
         if (start < 0) {
             throw new IllegalArgumentException("start cannot be less than zero.");
         }
@@ -56,7 +58,7 @@
         mEnd = end;
     }
 
-    private PageRange (Parcel parcel) {
+    private PageRange(@NonNull Parcel parcel) {
         this(parcel.readInt(), parcel.readInt());
     }
 
@@ -65,7 +67,7 @@
      *
      * @return The start page index.
      */
-    public int getStart() {
+    public @IntRange(from = 0) int getStart() {
         return mStart;
     }
 
@@ -74,7 +76,7 @@
      *
      * @return The end page index.
      */
-    public int getEnd() {
+    public @IntRange(from = 0) int getEnd() {
         return mEnd;
     }
 
diff --git a/core/java/android/print/PrintAttributes.java b/core/java/android/print/PrintAttributes.java
index 2afbb99..8892e34 100644
--- a/core/java/android/print/PrintAttributes.java
+++ b/core/java/android/print/PrintAttributes.java
@@ -16,6 +16,10 @@
 
 package android.print;
 
+import android.annotation.IntDef;
+import android.annotation.IntRange;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources.NotFoundException;
@@ -27,6 +31,8 @@
 
 import com.android.internal.R;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.Map;
 
 /**
@@ -37,6 +43,13 @@
  * 10 mills (thousand of an inch) on all sides, and be black and white.
  */
 public final class PrintAttributes implements Parcelable {
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, value = {
+            COLOR_MODE_MONOCHROME, COLOR_MODE_COLOR
+    })
+    public @interface ColorMode {
+    }
     /** Color mode: Monochrome color scheme, for example one color is used. */
     public static final int COLOR_MODE_MONOCHROME = 1 << 0;
     /** Color mode: Color color scheme, for example many colors are used. */
@@ -45,6 +58,13 @@
     private static final int VALID_COLOR_MODES =
             COLOR_MODE_MONOCHROME | COLOR_MODE_COLOR;
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, value = {
+            DUPLEX_MODE_NONE, DUPLEX_MODE_LONG_EDGE, DUPLEX_MODE_SHORT_EDGE
+    })
+    public @interface DuplexMode {
+    }
     /** Duplex mode: No duplexing. */
     public static final int DUPLEX_MODE_NONE = 1 << 0;
     /** Duplex mode: Pages are turned sideways along the long edge - like a book. */
@@ -66,7 +86,7 @@
         /* hide constructor */
     }
 
-    private PrintAttributes(Parcel parcel) {
+    private PrintAttributes(@NonNull Parcel parcel) {
         mMediaSize = (parcel.readInt() ==  1) ? MediaSize.createFromParcel(parcel) : null;
         mResolution = (parcel.readInt() ==  1) ? Resolution.createFromParcel(parcel) : null;
         mMinMargins = (parcel.readInt() ==  1) ? Margins.createFromParcel(parcel) : null;
@@ -79,7 +99,7 @@
      *
      * @return The media size or <code>null</code> if not set.
      */
-    public MediaSize getMediaSize() {
+    public @Nullable MediaSize getMediaSize() {
         return mMediaSize;
     }
 
@@ -99,7 +119,7 @@
      *
      * @return The resolution or <code>null</code> if not set.
      */
-    public Resolution getResolution() {
+    public @Nullable Resolution getResolution() {
         return mResolution;
     }
 
@@ -127,7 +147,7 @@
      *
      * @return The margins or <code>null</code> if not set.
      */
-    public Margins getMinMargins() {
+    public @Nullable Margins getMinMargins() {
         return mMinMargins;
     }
 
@@ -158,7 +178,7 @@
      * @see #COLOR_MODE_COLOR
      * @see #COLOR_MODE_MONOCHROME
      */
-    public int getColorMode() {
+    public @ColorMode int getColorMode() {
         return mColorMode;
     }
 
@@ -199,7 +219,7 @@
      * @see #DUPLEX_MODE_LONG_EDGE
      * @see #DUPLEX_MODE_SHORT_EDGE
      */
-    public int getDuplexMode() {
+    public @DuplexMode int getDuplexMode() {
         return mDuplexMode;
     }
 
@@ -828,7 +848,8 @@
          * or the widthMils is less than or equal to zero or the heightMils is less
          * than or equal to zero.
          */
-        public MediaSize(String id, String label, int widthMils, int heightMils) {
+        public MediaSize(@NonNull String id, @NonNull String label,
+                @IntRange(from = 1) int widthMils, @IntRange(from = 1) int heightMils) {
             if (TextUtils.isEmpty(id)) {
                 throw new IllegalArgumentException("id cannot be empty.");
             }
@@ -872,7 +893,7 @@
          *
          * @return The unique media size id.
          */
-        public String getId() {
+        public @NonNull String getId() {
             return mId;
         }
 
@@ -882,7 +903,7 @@
          * @param packageManager The package manager for loading the label.
          * @return The human readable label.
          */
-        public String getLabel(PackageManager packageManager) {
+        public @NonNull String getLabel(@NonNull PackageManager packageManager) {
             if (!TextUtils.isEmpty(mPackageName) && mLabelResId > 0) {
                 try {
                     return packageManager.getResourcesForApplication(
@@ -903,7 +924,7 @@
          *
          * @return The media width.
          */
-        public int getWidthMils() {
+        public @IntRange(from = 1) int getWidthMils() {
             return mWidthMils;
         }
 
@@ -912,7 +933,7 @@
          *
          * @return The media height.
          */
-        public int getHeightMils() {
+        public @IntRange(from = 1) int getHeightMils() {
             return mHeightMils;
         }
 
@@ -934,7 +955,7 @@
          * @return New instance in landscape orientation if this one
          * is in landscape, otherwise this instance.
          */
-        public MediaSize asPortrait() {
+        public @NonNull MediaSize asPortrait() {
             if (isPortrait()) {
                 return this;
             }
@@ -951,7 +972,7 @@
          * @return New instance in landscape orientation if this one
          * is in portrait, otherwise this instance.
          */
-        public MediaSize asLandscape() {
+        public @NonNull MediaSize asLandscape() {
             if (!isPortrait()) {
                 return this;
             }
@@ -1063,7 +1084,8 @@
          * or the horizontalDpi is less than or equal to zero or the verticalDpi is
          * less than or equal to zero.
          */
-        public Resolution(String id, String label, int horizontalDpi, int verticalDpi) {
+        public Resolution(@NonNull String id, @NonNull String label,
+                @IntRange(from = 1) int horizontalDpi, @IntRange(from = 1) int verticalDpi) {
             if (TextUtils.isEmpty(id)) {
                 throw new IllegalArgumentException("id cannot be empty.");
             }
@@ -1094,7 +1116,7 @@
          *
          * @return The unique resolution id.
          */
-        public String getId() {
+        public @NonNull String getId() {
             return mId;
         }
 
@@ -1103,7 +1125,7 @@
          *
          * @return The human readable label.
          */
-        public String getLabel() {
+        public @NonNull String getLabel() {
             return mLabel;
         }
 
@@ -1112,7 +1134,7 @@
          *
          * @return The horizontal resolution.
          */
-        public int getHorizontalDpi() {
+        public @IntRange(from = 1) int getHorizontalDpi() {
             return mHorizontalDpi;
         }
 
@@ -1121,7 +1143,7 @@
          *
          * @return The vertical resolution.
          */
-        public int getVerticalDpi() {
+        public @IntRange(from = 1) int getVerticalDpi() {
             return mVerticalDpi;
         }
 
@@ -1204,7 +1226,8 @@
          * @param rightMils The right margin in mils (thousands of an inch).
          * @param bottomMils The bottom margin in mils (thousands of an inch).
          */
-        public Margins(int leftMils, int topMils, int rightMils, int bottomMils) {
+        public Margins(@IntRange(from = 0) int leftMils, @IntRange(from = 0) int topMils,
+                @IntRange(from = 0) int rightMils, @IntRange(from = 0) int bottomMils) {
             mTopMils = topMils;
             mLeftMils = leftMils;
             mRightMils = rightMils;
@@ -1216,7 +1239,7 @@
          *
          * @return The left margin.
          */
-        public int getLeftMils() {
+        public @IntRange(from = 0) int getLeftMils() {
             return mLeftMils;
         }
 
@@ -1225,7 +1248,7 @@
          *
          * @return The top margin.
          */
-        public int getTopMils() {
+        public @IntRange(from = 0) int getTopMils() {
             return mTopMils;
         }
 
@@ -1234,7 +1257,7 @@
          *
          * @return The right margin.
          */
-        public int getRightMils() {
+        public @IntRange(from = 0) int getRightMils() {
             return mRightMils;
         }
 
@@ -1243,7 +1266,7 @@
          *
          * @return The bottom margin.
          */
-        public int getBottomMils() {
+        public @IntRange(from = 0) int getBottomMils() {
             return mBottomMils;
         }
 
@@ -1368,7 +1391,7 @@
          * @param mediaSize The media size.
          * @return This builder.
          */
-        public Builder setMediaSize(MediaSize mediaSize) {
+        public @NonNull Builder setMediaSize(@NonNull MediaSize mediaSize) {
             mAttributes.setMediaSize(mediaSize);
             return this;
         }
@@ -1379,7 +1402,7 @@
          * @param resolution The resolution.
          * @return This builder.
          */
-        public Builder setResolution(Resolution resolution) {
+        public @NonNull Builder setResolution(@NonNull Resolution resolution) {
             mAttributes.setResolution(resolution);
             return this;
         }
@@ -1391,7 +1414,7 @@
          * @param margins The margins.
          * @return This builder.
          */
-        public Builder setMinMargins(Margins margins) {
+        public @NonNull Builder setMinMargins(@NonNull Margins margins) {
             mAttributes.setMinMargins(margins);
             return this;
         }
@@ -1405,7 +1428,7 @@
          * @see PrintAttributes#COLOR_MODE_MONOCHROME
          * @see PrintAttributes#COLOR_MODE_COLOR
          */
-        public Builder setColorMode(int colorMode) {
+        public @NonNull Builder setColorMode(@ColorMode int colorMode) {
             mAttributes.setColorMode(colorMode);
             return this;
         }
@@ -1420,7 +1443,7 @@
          * @see PrintAttributes#DUPLEX_MODE_LONG_EDGE
          * @see PrintAttributes#DUPLEX_MODE_SHORT_EDGE
          */
-        public Builder setDuplexMode(int duplexMode) {
+        public @NonNull Builder setDuplexMode(@DuplexMode int duplexMode) {
             mAttributes.setDuplexMode(duplexMode);
             return this;
         }
@@ -1430,7 +1453,7 @@
          *
          * @return The new instance.
          */
-        public PrintAttributes build() {
+        public @NonNull PrintAttributes build() {
             return mAttributes;
         }
     }
diff --git a/core/java/android/print/PrintDocumentInfo.java b/core/java/android/print/PrintDocumentInfo.java
index 44e6410..db3b6f4 100644
--- a/core/java/android/print/PrintDocumentInfo.java
+++ b/core/java/android/print/PrintDocumentInfo.java
@@ -16,10 +16,16 @@
 
 package android.print;
 
+import android.annotation.IntDef;
+import android.annotation.IntRange;
+import android.annotation.NonNull;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
 /**
  * This class encapsulates information about a document for printing
  * purposes. This meta-data is used by the platform and print services,
@@ -74,6 +80,13 @@
      */
     public static final int PAGE_COUNT_UNKNOWN = -1;
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({
+            CONTENT_TYPE_UNKNOWN, CONTENT_TYPE_DOCUMENT, CONTENT_TYPE_PHOTO
+    })
+    public @interface ContentType {
+    }
     /**
      * Content type: unknown.
      */
@@ -116,9 +129,9 @@
     /**
      * Creates a new instance.
      *
-     * @param Prototype from which to clone.
+     * @param prototype from which to clone.
      */
-    private PrintDocumentInfo(PrintDocumentInfo prototype) {
+    private PrintDocumentInfo(@NonNull PrintDocumentInfo prototype) {
         mName = prototype.mName;
         mPageCount = prototype.mPageCount;
         mContentType = prototype.mContentType;
@@ -143,7 +156,7 @@
      *
      * @return The document name.
      */
-    public String getName() {
+    public @NonNull String getName() {
         return mName;
     }
 
@@ -154,7 +167,7 @@
      *
      * @see #PAGE_COUNT_UNKNOWN
      */
-    public int getPageCount() {
+    public @IntRange(from = -1) int getPageCount() {
         return mPageCount;
     }
 
@@ -167,7 +180,7 @@
      * @see #CONTENT_TYPE_DOCUMENT
      * @see #CONTENT_TYPE_PHOTO
      */
-    public int getContentType() {
+    public @ContentType int getContentType() {
         return mContentType;
     }
 
@@ -176,7 +189,7 @@
      *
      * @return The data size.
      */
-    public long getDataSize() {
+    public @IntRange(from = 0) long getDataSize() {
         return mDataSize;
     }
 
@@ -187,7 +200,7 @@
      *
      * @hide
      */
-    public void setDataSize(long dataSize) {
+    public void setDataSize(@IntRange(from = 0) long dataSize) {
         mDataSize = dataSize;
     }
 
@@ -288,7 +301,7 @@
          * is the file name if the content it describes is saved as a PDF.
          * Cannot be empty. 
          */
-        public Builder(String name) {
+        public Builder(@NonNull String name) {
             if (TextUtils.isEmpty(name)) {
                 throw new IllegalArgumentException("name cannot be empty");
             }
@@ -302,10 +315,11 @@
          * <strong>Default: </strong> {@link #PAGE_COUNT_UNKNOWN}
          * </p>
          *
-         * @param pageCount The number of pages. Must be greater than
-         * or equal to zero or {@link PrintDocumentInfo#PAGE_COUNT_UNKNOWN}.
+         * @param pageCount The number of pages. Must be greater than or equal to zero or
+         *            {@link PrintDocumentInfo#PAGE_COUNT_UNKNOWN}.
+         * @return This builder.
          */
-        public Builder setPageCount(int pageCount) {
+        public @NonNull Builder setPageCount(@IntRange(from = -1) int pageCount) {
             if (pageCount < 0 && pageCount != PAGE_COUNT_UNKNOWN) {
                 throw new IllegalArgumentException("pageCount"
                         + " must be greater than or equal to zero or"
@@ -322,12 +336,12 @@
          * </p>
          *
          * @param type The content type.
-         *
+         * @return This builder.
          * @see #CONTENT_TYPE_UNKNOWN
          * @see #CONTENT_TYPE_DOCUMENT
          * @see #CONTENT_TYPE_PHOTO
          */
-        public Builder setContentType(int type) {
+        public @NonNull Builder setContentType(@ContentType int type) {
             mPrototype.mContentType = type;
             return this;
         }
@@ -337,7 +351,7 @@
          *
          * @return The new instance.
          */
-        public PrintDocumentInfo build() {
+        public @NonNull PrintDocumentInfo build() {
             // Zero pages is the same as unknown as in this case
             // we will have to ask for all pages and look a the
             // wiritten PDF file for the page count.
diff --git a/core/java/android/print/PrintJob.java b/core/java/android/print/PrintJob.java
index 0abe219..777baab 100644
--- a/core/java/android/print/PrintJob.java
+++ b/core/java/android/print/PrintJob.java
@@ -16,6 +16,9 @@
 
 package android.print;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+
 /**
  * This class represents a print job from the perspective of an
  * application. It contains behavior methods for performing operations
@@ -41,7 +44,7 @@
      *
      * @return The id.
      */
-    public PrintJobId getId() {
+    public @NonNull PrintJobId getId() {
         return mCachedInfo.getId();
     }
 
@@ -55,7 +58,7 @@
      *
      * @return The print job info.
      */
-    public PrintJobInfo getInfo() {
+    public @Nullable PrintJobInfo getInfo() {
         if (isInImmutableState()) {
             return mCachedInfo;
         }
diff --git a/core/java/android/print/PrintJobId.java b/core/java/android/print/PrintJobId.java
index 01550e2..a2ee02b 100644
--- a/core/java/android/print/PrintJobId.java
+++ b/core/java/android/print/PrintJobId.java
@@ -16,6 +16,7 @@
 
 package android.print;
 
+import android.annotation.NonNull;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
@@ -91,14 +92,14 @@
      *
      * @hide
      */
-    public String flattenToString() {
+    public @NonNull String flattenToString() {
         return mValue;
     }
 
     /**
      * Unflattens a print job id from a string.
      *
-     * @string The string.
+     * @param string The string.
      * @return The unflattened id, or null if the string is malformed.
      *
      * @hide
diff --git a/core/java/android/print/PrintJobInfo.java b/core/java/android/print/PrintJobInfo.java
index 7148c87..21836b3 100644
--- a/core/java/android/print/PrintJobInfo.java
+++ b/core/java/android/print/PrintJobInfo.java
@@ -17,6 +17,9 @@
 package android.print;
 
 import android.annotation.FloatRange;
+import android.annotation.IntDef;
+import android.annotation.IntRange;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.TestApi;
 import android.os.Bundle;
@@ -25,6 +28,8 @@
 
 import com.android.internal.util.Preconditions;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.Arrays;
 
 /**
@@ -35,6 +40,15 @@
  */
 public final class PrintJobInfo implements Parcelable {
 
+    /** @hide */
+    @IntDef({
+            STATE_CREATED, STATE_QUEUED, STATE_STARTED, STATE_BLOCKED, STATE_COMPLETED,
+            STATE_FAILED, STATE_CANCELED
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface State {
+    }
+
     /**
      * Constant for matching any print job state.
      *
@@ -200,7 +214,7 @@
         mAdvancedOptions = other.mAdvancedOptions;
     }
 
-    private PrintJobInfo(Parcel parcel) {
+    private PrintJobInfo(@NonNull Parcel parcel) {
         mId = parcel.readParcelable(null);
         mLabel = parcel.readString();
         mPrinterId = parcel.readParcelable(null);
@@ -230,7 +244,7 @@
      *
      * @return The id.
      */
-    public PrintJobId getId() {
+    public @NonNull PrintJobId getId() {
         return mId;
     }
 
@@ -241,7 +255,7 @@
      *
      * @hide
      */
-    public void setId(PrintJobId id) {
+    public void setId(@NonNull PrintJobId id) {
         this.mId = id;
     }
 
@@ -250,7 +264,7 @@
      *
      * @return The label.
      */
-    public String getLabel() {
+    public @NonNull String getLabel() {
         return mLabel;
     }
 
@@ -261,7 +275,7 @@
      *
      * @hide
      */
-    public void setLabel(String label) {
+    public void setLabel(@NonNull String label) {
         mLabel = label;
     }
 
@@ -270,7 +284,7 @@
      *
      * @return The target printer id.
      */
-    public PrinterId getPrinterId() {
+    public @Nullable PrinterId getPrinterId() {
         return mPrinterId;
     }
 
@@ -281,7 +295,7 @@
      *
      * @hide
      */
-    public void setPrinterId(PrinterId printerId) {
+    public void setPrinterId(@NonNull PrinterId printerId) {
         mPrinterId = printerId;
     }
 
@@ -292,7 +306,7 @@
      *
      * @hide
      */
-    public String getPrinterName() {
+    public @Nullable String getPrinterName() {
         return mPrinterName;
     }
 
@@ -303,7 +317,7 @@
      *
      * @hide
      */
-    public void setPrinterName(String printerName) {
+    public void setPrinterName(@NonNull String printerName) {
         mPrinterName = printerName;
     }
 
@@ -320,7 +334,7 @@
      * @see #STATE_FAILED
      * @see #STATE_CANCELED
      */
-    public int getState() {
+    public @State int getState() {
         return mState;
     }
 
@@ -431,7 +445,7 @@
      *
      * @return The number of copies or zero if not set.
      */
-    public int getCopies() {
+    public @IntRange(from = 0) int getCopies() {
         return mCopies;
     }
 
@@ -454,7 +468,7 @@
      *
      * @return The included pages or <code>null</code> if not set.
      */
-    public PageRange[] getPages() {
+    public @Nullable PageRange[] getPages() {
         return mPageRanges;
     }
 
@@ -474,7 +488,7 @@
      *
      * @return The attributes.
      */
-    public PrintAttributes getAttributes() {
+    public @NonNull PrintAttributes getAttributes() {
         return mAttributes;
     }
 
@@ -713,7 +727,7 @@
          * @param prototype Prototype to use as a starting point.
          * Can be <code>null</code>.
          */
-        public Builder(PrintJobInfo prototype) {
+        public Builder(@Nullable PrintJobInfo prototype) {
             mPrototype = (prototype != null)
                     ? new PrintJobInfo(prototype)
                     : new PrintJobInfo();
@@ -724,7 +738,7 @@
          *
          * @param copies The number of copies.
          */
-        public void setCopies(int copies) {
+        public void setCopies(@IntRange(from = 1) int copies) {
             mPrototype.mCopies = copies;
         }
 
@@ -733,7 +747,7 @@
          *
          * @param attributes The attributes.
          */
-        public void setAttributes(PrintAttributes attributes) {
+        public void setAttributes(@NonNull PrintAttributes attributes) {
             mPrototype.mAttributes = attributes;
         }
 
@@ -742,7 +756,7 @@
          *
          * @param pages The included pages.
          */
-        public void setPages(PageRange[] pages) {
+        public void setPages(@NonNull PageRange[] pages) {
             mPrototype.mPageRanges = pages;
         }
 
@@ -774,7 +788,7 @@
          * @param key The option key.
          * @param value The option value.
          */
-        public void putAdvancedOption(String key, String value) {
+        public void putAdvancedOption(@NonNull String key, @Nullable String value) {
             if (mPrototype.mAdvancedOptions == null) {
                 mPrototype.mAdvancedOptions = new Bundle();
             }
@@ -787,7 +801,7 @@
          * @param key The option key.
          * @param value The option value.
          */
-        public void putAdvancedOption(String key, int value) {
+        public void putAdvancedOption(@NonNull String key, int value) {
             if (mPrototype.mAdvancedOptions == null) {
                 mPrototype.mAdvancedOptions = new Bundle();
             }
@@ -799,7 +813,7 @@
          *
          * @return The new instance.
          */
-        public PrintJobInfo build() {
+        public @NonNull PrintJobInfo build() {
             return mPrototype;
         }
     }
diff --git a/core/java/android/print/PrintManager.java b/core/java/android/print/PrintManager.java
index 3fb812e..3eb4874 100644
--- a/core/java/android/print/PrintManager.java
+++ b/core/java/android/print/PrintManager.java
@@ -16,11 +16,14 @@
 
 package android.print;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.app.Activity;
 import android.app.Application.ActivityLifecycleCallbacks;
 import android.content.Context;
 import android.content.IntentSender;
 import android.content.IntentSender.SendIntentException;
+import android.graphics.drawable.Icon;
 import android.os.Bundle;
 import android.os.CancellationSignal;
 import android.os.Handler;
@@ -180,6 +183,8 @@
      *
      * @param context The current context in which to operate.
      * @param service The backing system service.
+     * @param userId The user id in which to operate.
+     * @param appId The application id in which to operate.
      * @hide
      */
     public PrintManager(Context context, IPrintManager service, int userId, int appId) {
@@ -290,6 +295,7 @@
     /**
      * Gets a print job given its id.
      *
+     * @param printJobId The id of the print job.
      * @return The print job list.
      * @see PrintJob
      * @hide
@@ -311,12 +317,35 @@
     }
 
     /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @return the custom icon to be used for the printer or null if the icon is
+     *         not yet available
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     * @hide
+     */
+    public Icon getCustomPrinterIcon(PrinterId printerId) {
+        if (mService == null) {
+            Log.w(LOG_TAG, "Feature android.software.print not available");
+            return null;
+        }
+        try {
+            return mService.getCustomPrinterIcon(printerId, mUserId);
+        } catch (RemoteException re) {
+            Log.e(LOG_TAG, "Error getting custom printer icon", re);
+        }
+        return null;
+    }
+
+    /**
      * Gets the print jobs for this application.
      *
      * @return The print job list.
      * @see PrintJob
      */
-    public List<PrintJob> getPrintJobs() {
+    public @NonNull List<PrintJob> getPrintJobs() {
         if (mService == null) {
             Log.w(LOG_TAG, "Feature android.software.print not available");
             return Collections.emptyList();
@@ -411,8 +440,9 @@
      *
      * @see PrintJob
      */
-    public PrintJob print(String printJobName, PrintDocumentAdapter documentAdapter,
-            PrintAttributes attributes) {
+    public @NonNull PrintJob print(@NonNull String printJobName,
+            @NonNull PrintDocumentAdapter documentAdapter,
+            @Nullable PrintAttributes attributes) {
         if (mService == null) {
             Log.w(LOG_TAG, "Feature android.software.print not available");
             return null;
diff --git a/core/java/android/print/PrinterCapabilitiesInfo.java b/core/java/android/print/PrinterCapabilitiesInfo.java
index 96f3185..d13879b 100644
--- a/core/java/android/print/PrinterCapabilitiesInfo.java
+++ b/core/java/android/print/PrinterCapabilitiesInfo.java
@@ -16,8 +16,11 @@
 
 package android.print;
 
+import android.annotation.NonNull;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.print.PrintAttributes.ColorMode;
+import android.print.PrintAttributes.DuplexMode;
 import android.print.PrintAttributes.Margins;
 import android.print.PrintAttributes.MediaSize;
 import android.print.PrintAttributes.Resolution;
@@ -121,7 +124,7 @@
      *
      * @return The media sizes.
      */
-    public List<MediaSize> getMediaSizes() {
+    public @NonNull List<MediaSize> getMediaSizes() {
         return Collections.unmodifiableList(mMediaSizes);
     }
 
@@ -130,7 +133,7 @@
      *
      * @return The resolutions.
      */
-    public List<Resolution> getResolutions() {
+    public @NonNull List<Resolution> getResolutions() {
         return Collections.unmodifiableList(mResolutions);
     }
 
@@ -140,7 +143,7 @@
      *
      * @return The minimal margins.
      */
-    public Margins getMinMargins() {
+    public @NonNull Margins getMinMargins() {
         return mMinMargins;
     }
 
@@ -152,7 +155,7 @@
      * @see PrintAttributes#COLOR_MODE_COLOR
      * @see PrintAttributes#COLOR_MODE_MONOCHROME
      */
-    public int getColorModes() {
+    public @ColorMode int getColorModes() {
         return mColorModes;
     }
 
@@ -165,7 +168,7 @@
      * @see PrintAttributes#DUPLEX_MODE_LONG_EDGE
      * @see PrintAttributes#DUPLEX_MODE_SHORT_EDGE
      */
-    public int getDuplexModes() {
+    public @DuplexMode int getDuplexModes() {
         return mDuplexModes;
     }
 
@@ -174,7 +177,7 @@
      *
      * @return The default attributes.
      */
-    public PrintAttributes getDefaults() {
+    public @NonNull PrintAttributes getDefaults() {
         PrintAttributes.Builder builder = new PrintAttributes.Builder();
 
         builder.setMinMargins(mMinMargins);
@@ -425,7 +428,7 @@
          *
          * @throws IllegalArgumentException If the printer id is <code>null</code>.
          */
-        public Builder(PrinterId printerId) {
+        public Builder(@NonNull PrinterId printerId) {
             if (printerId == null) {
                 throw new IllegalArgumentException("printerId cannot be null.");
             }
@@ -446,7 +449,7 @@
          *
          * @see PrintAttributes.MediaSize
          */
-        public Builder addMediaSize(MediaSize mediaSize, boolean isDefault) {
+        public @NonNull Builder addMediaSize(@NonNull MediaSize mediaSize, boolean isDefault) {
             if (mPrototype.mMediaSizes == null) {
                 mPrototype.mMediaSizes = new ArrayList<MediaSize>();
             }
@@ -474,7 +477,7 @@
          *
          * @see PrintAttributes.Resolution
          */
-        public Builder addResolution(Resolution resolution, boolean isDefault) {
+        public @NonNull Builder addResolution(@NonNull Resolution resolution, boolean isDefault) {
             if (mPrototype.mResolutions == null) {
                 mPrototype.mResolutions = new ArrayList<Resolution>();
             }
@@ -502,7 +505,7 @@
          *
          * @see PrintAttributes.Margins
          */
-        public Builder setMinMargins(Margins margins) {
+        public @NonNull Builder setMinMargins(@NonNull Margins margins) {
             if (margins == null) {
                 throw new IllegalArgumentException("margins cannot be null");
             }
@@ -532,7 +535,8 @@
          * @see PrintAttributes#COLOR_MODE_COLOR
          * @see PrintAttributes#COLOR_MODE_MONOCHROME
          */
-        public Builder setColorModes(int colorModes, int defaultColorMode) {
+        public @NonNull Builder setColorModes(@ColorMode int colorModes,
+                @ColorMode int defaultColorMode) {
             int currentModes = colorModes;
             while (currentModes > 0) {
                 final int currentMode = (1 << Integer.numberOfTrailingZeros(currentModes));
@@ -562,7 +566,8 @@
          * @see PrintAttributes#DUPLEX_MODE_LONG_EDGE
          * @see PrintAttributes#DUPLEX_MODE_SHORT_EDGE
          */
-        public Builder setDuplexModes(int duplexModes, int defaultDuplexMode) {
+        public @NonNull Builder setDuplexModes(@DuplexMode int duplexModes,
+                @DuplexMode int defaultDuplexMode) {
             int currentModes = duplexModes;
             while (currentModes > 0) {
                 final int currentMode = (1 << Integer.numberOfTrailingZeros(currentModes));
@@ -589,7 +594,7 @@
          *
          * @throws IllegalStateException If a required attribute was not specified.
          */
-        public PrinterCapabilitiesInfo build() {
+        public @NonNull PrinterCapabilitiesInfo build() {
             if (mPrototype.mMediaSizes == null || mPrototype.mMediaSizes.isEmpty()) {
                 throw new IllegalStateException("No media size specified.");
             }
diff --git a/core/java/android/print/PrinterId.java b/core/java/android/print/PrinterId.java
index a3f3b2bf..83efe80 100644
--- a/core/java/android/print/PrinterId.java
+++ b/core/java/android/print/PrinterId.java
@@ -16,6 +16,7 @@
 
 package android.print;
 
+import android.annotation.NonNull;
 import android.content.ComponentName;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -65,7 +66,7 @@
      *
      * @return The printer name.
      */
-    public String getLocalId() {
+    public @NonNull String getLocalId() {
         return mLocalId;
     }
 
diff --git a/core/java/android/print/PrinterInfo.java b/core/java/android/print/PrinterInfo.java
index 7fcc81f..3ac78ea 100644
--- a/core/java/android/print/PrinterInfo.java
+++ b/core/java/android/print/PrinterInfo.java
@@ -16,10 +16,26 @@
 
 package android.print;
 
+import android.annotation.IntDef;
+import android.annotation.DrawableRes;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.annotation.TestApi;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.Icon;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
 /**
  * This class represents the description of a printer. Instances of
  * this class are created by print services to report to the system
@@ -30,6 +46,13 @@
  */
 public final class PrinterInfo implements Parcelable {
 
+    /** @hide */
+    @IntDef({
+            STATUS_IDLE, STATUS_BUSY, STATUS_UNAVAILABLE
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Status {
+    }
     /** Printer status: the printer is idle and ready to print. */
     public static final int STATUS_IDLE = 1;
 
@@ -41,6 +64,18 @@
 
     private PrinterId mId;
 
+    /** Resource inside the printer's services's package to be used as an icon */
+    private int mIconResourceId;
+
+    /** If a custom icon can be loaded for the printer */
+    private boolean mHasCustomPrinterIcon;
+
+    /** The generation of the icon in the cache. */
+    private int mCustomPrinterIconGen;
+
+    /** Intent that launches the activity showing more information about the printer. */
+    private PendingIntent mInfoIntent;
+
     private String mName;
 
     private int mStatus;
@@ -77,6 +112,10 @@
         } else {
             mCapabilities = null;
         }
+        mIconResourceId = other.mIconResourceId;
+        mHasCustomPrinterIcon = other.mHasCustomPrinterIcon;
+        mCustomPrinterIconGen = other.mCustomPrinterIconGen;
+        mInfoIntent = other.mInfoIntent;
     }
 
     /**
@@ -84,16 +123,64 @@
      *
      * @return The printer id.
      */
-    public PrinterId getId() {
+    public @NonNull PrinterId getId() {
         return mId;
     }
 
     /**
+     * Get the icon to be used for this printer. If no per printer icon is available, the printer's
+     * service's icon is returned. If the printer has a custom icon this icon might get requested
+     * asynchronously. Once the icon is loaded the discovery sessions will be notified that the
+     * printer changed.
+     *
+     * @param context The context that will be using the icons
+     * @return The icon to be used for the printer or null if no icon could be found.
+     * @hide
+     */
+    @TestApi
+    public @Nullable Drawable loadIcon(@NonNull Context context) {
+        Drawable drawable = null;
+        PackageManager packageManager = context.getPackageManager();
+
+        if (mHasCustomPrinterIcon) {
+            PrintManager printManager = (PrintManager) context
+                    .getSystemService(Context.PRINT_SERVICE);
+
+            Icon icon = printManager.getCustomPrinterIcon(mId);
+
+            if (icon != null) {
+                drawable = icon.loadDrawable(context);
+            }
+        }
+
+        if (drawable == null) {
+            try {
+                String packageName = mId.getServiceName().getPackageName();
+                PackageInfo packageInfo = packageManager.getPackageInfo(packageName, 0);
+                ApplicationInfo appInfo = packageInfo.applicationInfo;
+
+                // If no custom icon is available, try the icon from the resources
+                if (mIconResourceId != 0) {
+                    drawable = packageManager.getDrawable(packageName, mIconResourceId, appInfo);
+                }
+
+                // Fall back to the printer's service's icon if no per printer icon could be found
+                if (drawable == null) {
+                    drawable = appInfo.loadIcon(packageManager);
+                }
+            } catch (NameNotFoundException e) {
+            }
+        }
+
+        return drawable;
+    }
+
+    /**
      * Get the printer name.
      *
      * @return The printer name.
      */
-    public String getName() {
+    public @Nullable String getName() {
         return mName;
     }
 
@@ -106,7 +193,7 @@
      * @see #STATUS_IDLE
      * @see #STATUS_UNAVAILABLE
      */
-    public int getStatus() {
+    public @Status int getStatus() {
         return mStatus;
     }
 
@@ -115,16 +202,28 @@
      *
      * @return The description.
      */
-    public String getDescription() {
+    public @Nullable String getDescription() {
         return mDescription;
     }
 
     /**
+     * Get the {@link PendingIntent} that launches the activity showing more information about the
+     * printer.
+     *
+     * @return the {@link PendingIntent} that launches the activity showing more information about
+     *         the printer or null if it is not configured
+     * @hide
+     */
+    public @Nullable PendingIntent getInfoIntent() {
+        return mInfoIntent;
+    }
+
+    /**
      * Gets the printer capabilities.
      *
      * @return The capabilities.
      */
-    public PrinterCapabilitiesInfo getCapabilities() {
+    public @Nullable PrinterCapabilitiesInfo getCapabilities() {
         return mCapabilities;
     }
 
@@ -134,6 +233,10 @@
         mStatus = parcel.readInt();
         mDescription = parcel.readString();
         mCapabilities = parcel.readParcelable(null);
+        mIconResourceId = parcel.readInt();
+        mHasCustomPrinterIcon = parcel.readByte() != 0;
+        mCustomPrinterIconGen = parcel.readInt();
+        mInfoIntent = parcel.readParcelable(null);
     }
 
     @Override
@@ -148,6 +251,10 @@
         parcel.writeInt(mStatus);
         parcel.writeString(mDescription);
         parcel.writeParcelable(mCapabilities, flags);
+        parcel.writeInt(mIconResourceId);
+        parcel.writeByte((byte) (mHasCustomPrinterIcon ? 1 : 0));
+        parcel.writeInt(mCustomPrinterIconGen);
+        parcel.writeParcelable(mInfoIntent, flags);
     }
 
     @Override
@@ -159,9 +266,61 @@
         result = prime * result + mStatus;
         result = prime * result + ((mDescription != null) ? mDescription.hashCode() : 0);
         result = prime * result + ((mCapabilities != null) ? mCapabilities.hashCode() : 0);
+        result = prime * result + mIconResourceId;
+        result = prime * result + (mHasCustomPrinterIcon ? 1 : 0);
+        result = prime * result + mCustomPrinterIconGen;
+        result = prime * result + ((mInfoIntent != null) ? mInfoIntent.hashCode() : 0);
         return result;
     }
 
+    /**
+     * Compare two {@link PrinterInfo printerInfos} in all aspects beside being null and the
+     * {@link #mStatus}.
+     *
+     * @param other the other {@link PrinterInfo}
+     * @return true iff the infos are equivalent
+     * @hide
+     */
+    public boolean equalsIgnoringStatus(PrinterInfo other) {
+        if (mId == null) {
+            if (other.mId != null) {
+                return false;
+            }
+        } else if (!mId.equals(other.mId)) {
+            return false;
+        }
+        if (!TextUtils.equals(mName, other.mName)) {
+            return false;
+        }
+        if (!TextUtils.equals(mDescription, other.mDescription)) {
+            return false;
+        }
+        if (mCapabilities == null) {
+            if (other.mCapabilities != null) {
+                return false;
+            }
+        } else if (!mCapabilities.equals(other.mCapabilities)) {
+            return false;
+        }
+        if (mIconResourceId != other.mIconResourceId) {
+            return false;
+        }
+        if (mHasCustomPrinterIcon != other.mHasCustomPrinterIcon) {
+            return false;
+        }
+        if (mCustomPrinterIconGen != other.mCustomPrinterIconGen) {
+            return false;
+        }
+        if (mInfoIntent == null) {
+            if (other.mInfoIntent != null) {
+                return false;
+            }
+        } else if (!mInfoIntent.equals(other.mInfoIntent)) {
+            return false;
+        }
+        return true;
+    }
+
     @Override
     public boolean equals(Object obj) {
         if (this == obj) {
@@ -174,29 +333,12 @@
             return false;
         }
         PrinterInfo other = (PrinterInfo) obj;
-        if (mId == null) {
-            if (other.mId != null) {
-                return false;
-            }
-        } else if (!mId.equals(other.mId)) {
-            return false;
-        }
-        if (!TextUtils.equals(mName, other.mName)) {
+        if (!equalsIgnoringStatus(other)) {
             return false;
         }
         if (mStatus != other.mStatus) {
             return false;
         }
-        if (!TextUtils.equals(mDescription, other.mDescription)) {
-            return false;
-        }
-        if (mCapabilities == null) {
-            if (other.mCapabilities != null) {
-                return false;
-            }
-        } else if (!mCapabilities.equals(other.mCapabilities)) {
-            return false;
-        }
         return true;
     }
 
@@ -209,6 +351,10 @@
         builder.append(", status=").append(mStatus);
         builder.append(", description=").append(mDescription);
         builder.append(", capabilities=").append(mCapabilities);
+        builder.append(", iconResId=").append(mIconResourceId);
+        builder.append(", hasCustomPrinterIcon=").append(mHasCustomPrinterIcon);
+        builder.append(", customPrinterIconGen=").append(mCustomPrinterIconGen);
+        builder.append(", infoIntent=").append(mInfoIntent);
         builder.append("\"}");
         return builder.toString();
     }
@@ -228,7 +374,7 @@
          * @throws IllegalArgumentException If the printer id is null, or the
          * printer name is empty or the status is not a valid one.
          */
-        public Builder(PrinterId printerId, String name, int status) {
+        public Builder(@NonNull PrinterId printerId, @NonNull String name, @Status int status) {
             if (printerId == null) {
                 throw new IllegalArgumentException("printerId cannot be null.");
             }
@@ -249,7 +395,7 @@
          *
          * @param other Other info from which to start building.
          */
-        public Builder(PrinterInfo other) {
+        public Builder(@NonNull PrinterInfo other) {
             mPrototype = new PrinterInfo();
             mPrototype.copyFrom(other);
         }
@@ -264,19 +410,49 @@
          * @see PrinterInfo#STATUS_BUSY
          * @see PrinterInfo#STATUS_UNAVAILABLE
          */
-        public Builder setStatus(int status) {
+        public @Nullable Builder setStatus(@Status int status) {
             mPrototype.mStatus = status;
             return this;
         }
 
         /**
+         * Set a drawable resource as icon for this printer. If no icon is set the printer's
+         * service's icon is used for the printer.
+         *
+         * @return This builder.
+         * @see PrinterInfo.Builder#setHasCustomPrinterIcon
+         */
+        public @NonNull Builder setIconResourceId(@DrawableRes int iconResourceId) {
+            mPrototype.mIconResourceId = iconResourceId;
+            return this;
+        }
+
+        /**
+         * Declares that the print service can load a custom per printer's icon. If both
+         * {@link PrinterInfo.Builder#setIconResourceId} and a custom icon are set the resource icon
+         * is shown while the custom icon loads but then the custom icon is used. If
+         * {@link PrinterInfo.Builder#setIconResourceId} is not set the printer's service's icon is
+         * shown while loading.
+         * <p>
+         * The icon is requested asynchronously and only when needed via
+         * {@link android.printservice.PrinterDiscoverySession#onRequestCustomPrinterIcon}.
+         * </p>
+         *
+         * @return This builder.
+         */
+        public @NonNull Builder setHasCustomPrinterIcon() {
+            mPrototype.mHasCustomPrinterIcon = true;
+            return this;
+        }
+
+        /**
          * Sets the <strong>localized</strong> printer name which
          * is shown to the user
          *
          * @param name The name.
          * @return This builder.
          */
-        public Builder setName(String name) {
+        public @NonNull Builder setName(@NonNull String name) {
             mPrototype.mName = name;
             return this;
         }
@@ -288,18 +464,30 @@
          * @param description The description.
          * @return This builder.
          */
-        public Builder setDescription(String description) {
+        public @NonNull Builder setDescription(@NonNull String description) {
             mPrototype.mDescription = description;
             return this;
         }
 
         /**
+         * Sets the {@link PendingIntent} that launches an activity showing more information about
+         * the printer.
+         *
+         * @param infoIntent The {@link PendingIntent intent}.
+         * @return This builder.
+         */
+        public @NonNull Builder setInfoIntent(@NonNull PendingIntent infoIntent) {
+            mPrototype.mInfoIntent = infoIntent;
+            return this;
+        }
+
+        /**
          * Sets the printer capabilities.
          *
          * @param capabilities The capabilities.
          * @return This builder.
          */
-        public Builder setCapabilities(PrinterCapabilitiesInfo capabilities) {
+        public @NonNull Builder setCapabilities(@NonNull PrinterCapabilitiesInfo capabilities) {
             mPrototype.mCapabilities = capabilities;
             return this;
         }
@@ -309,7 +497,7 @@
          *
          * @return A new {@link PrinterInfo}.
          */
-        public PrinterInfo build() {
+        public @NonNull PrinterInfo build() {
             return mPrototype;
         }
 
@@ -318,6 +506,19 @@
                     || status == STATUS_BUSY
                     || status == STATUS_UNAVAILABLE);
         }
+
+        /**
+         * Increments the generation number of the custom printer icon. As the {@link PrinterInfo}
+         * does not match the previous one anymore, users of the {@link PrinterInfo} will reload the
+         * icon if needed.
+         *
+         * @return This builder.
+         * @hide
+         */
+        public @NonNull Builder incCustomPrinterIconGen() {
+            mPrototype.mCustomPrinterIconGen++;
+            return this;
+        }
     }
 
     public static final Parcelable.Creator<PrinterInfo> CREATOR =
diff --git a/core/java/android/print/pdf/PrintedPdfDocument.java b/core/java/android/print/pdf/PrintedPdfDocument.java
index 2d8aafa..df7c054 100644
--- a/core/java/android/print/pdf/PrintedPdfDocument.java
+++ b/core/java/android/print/pdf/PrintedPdfDocument.java
@@ -16,26 +16,25 @@
 
 package android.print.pdf;
 
+import android.annotation.IntRange;
+import android.annotation.NonNull;
 import android.content.Context;
 import android.graphics.Rect;
 import android.graphics.pdf.PdfDocument;
-import android.graphics.pdf.PdfDocument.Page;
-import android.graphics.pdf.PdfDocument.PageInfo;
 import android.print.PrintAttributes;
 import android.print.PrintAttributes.Margins;
 import android.print.PrintAttributes.MediaSize;
 
 /**
- * This class is a helper for creating a PDF file for given print
- * attributes. It is useful for implementing printing via the native
- * Android graphics APIs.
+ * This class is a helper for creating a PDF file for given print attributes. It is useful for
+ * implementing printing via the native Android graphics APIs.
  * <p>
- * This class computes the page width, page height, and content rectangle
- * from the provided print attributes and these precomputed values can be
- * accessed via {@link #getPageWidth()}, {@link #getPageHeight()}, and
- * {@link #getPageContentRect()}, respectively. The {@link #startPage(int)}
- * methods creates pages whose {@link PageInfo} is initialized with the
- * precomputed values for width, height, and content rectangle.
+ * This class computes the page width, page height, and content rectangle from the provided print
+ * attributes and these precomputed values can be accessed via {@link #getPageWidth()},
+ * {@link #getPageHeight()}, and {@link #getPageContentRect()}, respectively. The
+ * {@link #startPage(int)} methods creates pages whose
+ * {@link android.graphics.pdf.PdfDocument.PageInfo PageInfo} is initialized with the precomputed
+ * values for width, height, and content rectangle.
  * <p>
  * A typical use of the APIs looks like this:
  * </p>
@@ -81,7 +80,7 @@
      * @param context Context instance for accessing resources.
      * @param attributes The print attributes.
      */
-    public PrintedPdfDocument(Context context, PrintAttributes attributes) {
+    public PrintedPdfDocument(@NonNull Context context, @NonNull PrintAttributes attributes) {
         MediaSize mediaSize = attributes.getMediaSize();
 
         // Compute the size of the target canvas from the attributes.
@@ -105,28 +104,28 @@
     }
 
     /**
-     * Starts a new page. The page is created using width, height  and content
-     * rectangle computed from the print attributes passed in the constructor
-     * and the given page number to create an appropriate {@link PageInfo}.
+     * Starts a new page. The page is created using width, height and content rectangle computed
+     * from the print attributes passed in the constructor and the given page number to create an
+     * appropriate {@link android.graphics.pdf.PdfDocument.PageInfo PageInfo}.
      * <p>
-     * After the page is created you can draw arbitrary content on the page's
-     * canvas which you can get by calling {@link Page#getCanvas() Page.getCanvas()}.
+     * After the page is created you can draw arbitrary content on the page's canvas which you can
+     * get by calling {@link android.graphics.pdf.PdfDocument.Page#getCanvas() Page.getCanvas()}.
      * After you are done drawing the content you should finish the page by calling
-     * {@link #finishPage(Page)}. After the page is finished you should no longer
-     * access the page or its canvas.
+     * {@link #finishPage(Page)}. After the page is finished you should no longer access the page or
+     * its canvas.
      * </p>
      * <p>
-     * <strong>Note:</strong> Do not call this method after {@link #close()}.
-     * Also do not call this method if the last page returned by this method
-     * is not finished by calling {@link #finishPage(Page)}.
+     * <strong>Note:</strong> Do not call this method after {@link #close()}. Also do not call this
+     * method if the last page returned by this method is not finished by calling
+     * {@link #finishPage(Page)}.
      * </p>
      *
-     * @param pageNumber The page number. Must be a positive value.
+     * @param pageNumber The page number. Must be a non negative.
      * @return A blank page.
      *
      * @see #finishPage(Page)
      */
-    public Page startPage(int pageNumber) {
+    public @NonNull Page startPage(@IntRange(from = 0) int pageNumber) {
         PageInfo pageInfo = new PageInfo
                 .Builder(mPageWidth, mPageHeight, pageNumber)
                 .setContentRect(mContentRect)
@@ -139,7 +138,7 @@
      *
      * @return The page width in PostScript points (1/72th of an inch).
      */
-    public int getPageWidth() {
+    public @IntRange(from = 0) int getPageWidth() {
         return mPageWidth;
     }
 
@@ -148,7 +147,7 @@
      *
      * @return The page height in PostScript points (1/72th of an inch).
      */
-    public int getPageHeight() {
+    public @IntRange(from = 0) int getPageHeight() {
         return mPageHeight;
     }
 
@@ -158,7 +157,7 @@
      *
      * @return The content rectangle.
      */
-    public Rect getPageContentRect() {
+    public @NonNull Rect getPageContentRect() {
         return mContentRect;
     }
 }
diff --git a/core/java/android/printservice/CustomPrinterIconCallback.java b/core/java/android/printservice/CustomPrinterIconCallback.java
new file mode 100644
index 0000000..ea9ea8b
--- /dev/null
+++ b/core/java/android/printservice/CustomPrinterIconCallback.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.printservice;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.graphics.drawable.Icon;
+import android.os.RemoteException;
+import android.print.PrinterId;
+import android.util.Log;
+
+
+/**
+ * Callback for {@link PrinterDiscoverySession#onRequestCustomPrinterIcon}.
+ */
+public class CustomPrinterIconCallback {
+    /** The printer the call back is for */
+    private final @NonNull PrinterId mPrinterId;
+    private final @NonNull IPrintServiceClient mObserver;
+    private static final String LOG_TAG = "CustomPrinterIconCallback";
+
+    /**
+     * Create a callback class to be used once a icon is loaded
+     *
+     * @param printerId The printer the icon should be loaded for
+     * @param observer The observer that needs to be notified about the update.
+     */
+    CustomPrinterIconCallback(@NonNull PrinterId printerId, @NonNull IPrintServiceClient observer) {
+        mPrinterId = printerId;
+        mObserver = observer;
+    }
+
+    /**
+     * Provide a new icon for a printer. Can be called more than once to update the icon.
+     *
+     * @param icon The new icon for the printer or null to unset the current icon
+     * @return true iff the icon could be updated
+     */
+    public boolean onCustomPrinterIconLoaded(@Nullable Icon icon) {
+        try {
+            mObserver.onCustomPrinterIconLoaded(mPrinterId, icon);
+        } catch (RemoteException e) {
+            Log.e(LOG_TAG , "Could not update icon", e);
+            return false;
+        }
+
+        return true;
+    }
+}
diff --git a/core/java/android/printservice/IPrintService.aidl b/core/java/android/printservice/IPrintService.aidl
index ee36619..3750d7a 100644
--- a/core/java/android/printservice/IPrintService.aidl
+++ b/core/java/android/printservice/IPrintService.aidl
@@ -10,7 +10,7 @@
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific languagÿe governing permissions and
+ * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
@@ -35,6 +35,15 @@
     void stopPrinterDiscovery();
     void validatePrinters(in List<PrinterId> printerIds);
     void startPrinterStateTracking(in PrinterId printerId);
+
+    /**
+     * Request the custom icon for a printer.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    void requestCustomPrinterIcon(in PrinterId printerId);
+
     void stopPrinterStateTracking(in PrinterId printerId);
     void destroyPrinterDiscoverySession();
 }
diff --git a/core/java/android/printservice/IPrintServiceClient.aidl b/core/java/android/printservice/IPrintServiceClient.aidl
index b4baa48..0ae1e18 100644
--- a/core/java/android/printservice/IPrintServiceClient.aidl
+++ b/core/java/android/printservice/IPrintServiceClient.aidl
@@ -16,6 +16,7 @@
 
 package android.printservice;
 
+import android.graphics.drawable.Icon;
 import android.os.ParcelFileDescriptor;
 import android.print.PrintJobInfo;
 import android.print.PrinterId;
@@ -53,4 +54,13 @@
 
     void onPrintersAdded(in ParceledListSlice printers);
     void onPrintersRemoved(in ParceledListSlice printerIds);
+
+    /**
+     * Handle that a custom icon for a printer was loaded.
+     *
+     * @param printerId the id of the printer the icon belongs to
+     * @param icon the icon that was loaded
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    void onCustomPrinterIconLoaded(in PrinterId printerId, in Icon icon);
 }
diff --git a/core/java/android/printservice/PrintDocument.java b/core/java/android/printservice/PrintDocument.java
index e43f2a8..0121ae1 100644
--- a/core/java/android/printservice/PrintDocument.java
+++ b/core/java/android/printservice/PrintDocument.java
@@ -16,6 +16,8 @@
 
 package android.printservice;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
 import android.print.PrintDocumentInfo;
@@ -54,7 +56,7 @@
      *
      * @return The document info.
      */
-    public PrintDocumentInfo getInfo() {
+    public @NonNull PrintDocumentInfo getInfo() {
         PrintService.throwIfNotCalledOnMainThread();
         return mInfo;
     }
@@ -69,7 +71,7 @@
      *
      * @return A file descriptor for reading the data.
      */
-    public ParcelFileDescriptor getData() {
+    public @Nullable ParcelFileDescriptor getData() {
         PrintService.throwIfNotCalledOnMainThread();
         ParcelFileDescriptor source = null;
         ParcelFileDescriptor sink = null;
diff --git a/core/java/android/printservice/PrintJob.java b/core/java/android/printservice/PrintJob.java
index 86fc292..6414b6a 100644
--- a/core/java/android/printservice/PrintJob.java
+++ b/core/java/android/printservice/PrintJob.java
@@ -344,7 +344,7 @@
      * @return True if the tag was set, false otherwise.
      */
     @MainThread
-    public boolean setTag(String tag) {
+    public boolean setTag(@NonNull String tag) {
         PrintService.throwIfNotCalledOnMainThread();
         if (isInImmutableState()) {
             return false;
@@ -364,7 +364,8 @@
      *
      * @see #setTag(String)
      */
-    public String getTag() {
+    @MainThread
+    public @Nullable String getTag() {
         PrintService.throwIfNotCalledOnMainThread();
         return getInfo().getTag();
     }
diff --git a/core/java/android/printservice/PrintService.java b/core/java/android/printservice/PrintService.java
index 6295822..d0037b7 100644
--- a/core/java/android/printservice/PrintService.java
+++ b/core/java/android/printservice/PrintService.java
@@ -16,6 +16,7 @@
 
 package android.printservice;
 
+import android.annotation.Nullable;
 import android.app.Service;
 import android.content.ComponentName;
 import android.content.Context;
@@ -191,30 +192,29 @@
 
     /**
      * If you declared an optional activity with advanced print options via the
-     * {@link android.R.attr#advancedPrintOptionsActivity advancedPrintOptionsActivity}
-     * attribute, this extra is used to pass in the currently constructed {@link
-     * PrintJobInfo} to your activity allowing you to modify it. After you are
-     * done, you must return the modified {@link PrintJobInfo} via the same extra.
+     * {@link android.R.attr#advancedPrintOptionsActivity advancedPrintOptionsActivity} attribute,
+     * this extra is used to pass in the currently constructed {@link PrintJobInfo} to your activity
+     * allowing you to modify it. After you are done, you must return the modified
+     * {@link PrintJobInfo} via the same extra.
      * <p>
-     * You cannot modify the passed in {@link PrintJobInfo} directly, rather you
-     * should build another one using the {@link PrintJobInfo.Builder} class. You
-     * can specify any standard properties and add advanced, printer specific,
-     * ones via {@link PrintJobInfo.Builder#putAdvancedOption(String, String)
-     * PrintJobInfo.Builder.putAdvancedOption(String, String)} and {@link
-     * PrintJobInfo.Builder#putAdvancedOption(String, int)
-     * PrintJobInfo.Builder.putAdvancedOption(String, int)}. The advanced options
-     * are not interpreted by the system, they will not be visible to applications,
-     * and can only be accessed by your print service via {@link
-     * PrintJob#getAdvancedStringOption(String) PrintJob.getAdvancedStringOption(String)}
-     * and {@link PrintJob#getAdvancedIntOption(String) PrintJob.getAdvancedIntOption(String)}.
+     * You cannot modify the passed in {@link PrintJobInfo} directly, rather you should build
+     * another one using the {@link android.print.PrintJobInfo.Builder PrintJobInfo.Builder} class.
+     * You can specify any standard properties and add advanced, printer specific, ones via
+     * {@link android.print.PrintJobInfo.Builder#putAdvancedOption(String, String)
+     * PrintJobInfo.Builder.putAdvancedOption(String, String)} and
+     * {@link android.print.PrintJobInfo.Builder#putAdvancedOption(String, int)
+     * PrintJobInfo.Builder.putAdvancedOption(String, int)}. The advanced options are not
+     * interpreted by the system, they will not be visible to applications, and can only be accessed
+     * by your print service via {@link PrintJob#getAdvancedStringOption(String)
+     * PrintJob.getAdvancedStringOption(String)} and {@link PrintJob#getAdvancedIntOption(String)
+     * PrintJob.getAdvancedIntOption(String)}.
      * </p>
      * <p>
-     * If the advanced print options activity offers changes to the standard print
-     * options, you can get the current {@link android.print.PrinterInfo} using the
-     * {@link #EXTRA_PRINTER_INFO} extra which will allow you to present the user
-     * with UI options supported by the current printer. For example, if the current
-     * printer does not support a given media size, you should not offer it in the
-     * advanced print options UI.
+     * If the advanced print options activity offers changes to the standard print options, you can
+     * get the current {@link android.print.PrinterInfo PrinterInfo} using the
+     * {@link #EXTRA_PRINTER_INFO} extra which will allow you to present the user with UI options
+     * supported by the current printer. For example, if the current printer does not support a
+     * given media size, you should not offer it in the advanced print options UI.
      * </p>
      *
      * @see #EXTRA_PRINTER_INFO
@@ -275,9 +275,10 @@
     /**
      * Callback asking you to create a new {@link PrinterDiscoverySession}.
      *
+     * @return The created session.
      * @see PrinterDiscoverySession
      */
-    protected abstract PrinterDiscoverySession onCreatePrinterDiscoverySession();
+    protected abstract @Nullable PrinterDiscoverySession onCreatePrinterDiscoverySession();
 
     /**
      * Called when cancellation of a print job is requested. The service
@@ -368,6 +369,7 @@
                 mHandler.sendEmptyMessage(ServiceHandler.MSG_DESTROY_PRINTER_DISCOVERY_SESSION);
             }
 
+            @Override
             public void startPrinterDiscovery(List<PrinterId> priorityList) {
                 mHandler.obtainMessage(ServiceHandler.MSG_START_PRINTER_DISCOVERY,
                         priorityList).sendToTarget();
@@ -391,6 +393,12 @@
             }
 
             @Override
+            public void requestCustomPrinterIcon(PrinterId printerId) {
+                mHandler.obtainMessage(ServiceHandler.MSG_REQUEST_CUSTOM_PRINTER_ICON,
+                        printerId).sendToTarget();
+            }
+
+            @Override
             public void stopPrinterStateTracking(PrinterId printerId) {
                 mHandler.obtainMessage(ServiceHandler.MSG_STOP_PRINTER_STATE_TRACKING,
                         printerId).sendToTarget();
@@ -423,10 +431,11 @@
         public static final int MSG_STOP_PRINTER_DISCOVERY = 4;
         public static final int MSG_VALIDATE_PRINTERS = 5;
         public static final int MSG_START_PRINTER_STATE_TRACKING = 6;
-        public static final int MSG_STOP_PRINTER_STATE_TRACKING = 7;
-        public static final int MSG_ON_PRINTJOB_QUEUED = 8;
-        public static final int MSG_ON_REQUEST_CANCEL_PRINTJOB = 9;
-        public static final int MSG_SET_CLIENT = 10;
+        public static final int MSG_REQUEST_CUSTOM_PRINTER_ICON = 7;
+        public static final int MSG_STOP_PRINTER_STATE_TRACKING = 8;
+        public static final int MSG_ON_PRINTJOB_QUEUED = 9;
+        public static final int MSG_ON_REQUEST_CANCEL_PRINTJOB = 10;
+        public static final int MSG_SET_CLIENT = 11;
 
         public ServiceHandler(Looper looper) {
             super(looper, null, true);
@@ -508,6 +517,17 @@
                     }
                 } break;
 
+                case MSG_REQUEST_CUSTOM_PRINTER_ICON: {
+                    if (DEBUG) {
+                        Log.i(LOG_TAG, "MSG_REQUEST_CUSTOM_PRINTER_ICON "
+                                + getPackageName());
+                    }
+                    if (mDiscoverySession != null) {
+                        PrinterId printerId = (PrinterId) message.obj;
+                        mDiscoverySession.requestCustomPrinterIcon(printerId);
+                    }
+                } break;
+
                 case MSG_STOP_PRINTER_STATE_TRACKING: {
                     if (DEBUG) {
                         Log.i(LOG_TAG, "MSG_STOP_PRINTER_STATE_TRACKING "
diff --git a/core/java/android/printservice/PrintServiceInfo.java b/core/java/android/printservice/PrintServiceInfo.java
index a2c6c09..b33ef83 100644
--- a/core/java/android/printservice/PrintServiceInfo.java
+++ b/core/java/android/printservice/PrintServiceInfo.java
@@ -98,8 +98,7 @@
      *
      * @param resolveInfo The service resolve info.
      * @param context Context for accessing resources.
-     * @throws XmlPullParserException If a XML parsing error occurs.
-     * @throws IOException If a I/O error occurs.
+     * @return The created instance.
      */
     public static PrintServiceInfo create(ResolveInfo resolveInfo, Context context) {
         String settingsActivityName = null;
@@ -220,10 +219,12 @@
     /**
      * {@inheritDoc}
      */
+    @Override
     public int describeContents() {
         return 0;
     }
 
+    @Override
     public void writeToParcel(Parcel parcel, int flagz) {
         parcel.writeString(mId);
         parcel.writeParcelable(mResolveInfo, 0);
@@ -275,10 +276,12 @@
 
     public static final Parcelable.Creator<PrintServiceInfo> CREATOR =
             new Parcelable.Creator<PrintServiceInfo>() {
+        @Override
         public PrintServiceInfo createFromParcel(Parcel parcel) {
             return new PrintServiceInfo(parcel);
         }
 
+        @Override
         public PrintServiceInfo[] newArray(int size) {
             return new PrintServiceInfo[size];
         }
diff --git a/core/java/android/printservice/PrinterDiscoverySession.java b/core/java/android/printservice/PrinterDiscoverySession.java
index 17cb68f..cd5a903 100644
--- a/core/java/android/printservice/PrinterDiscoverySession.java
+++ b/core/java/android/printservice/PrinterDiscoverySession.java
@@ -16,6 +16,7 @@
 
 package android.printservice;
 
+import android.annotation.NonNull;
 import android.content.pm.ParceledListSlice;
 import android.os.RemoteException;
 import android.print.PrinterCapabilitiesInfo;
@@ -138,7 +139,7 @@
      * @see #removePrinters(List)
      * @see #isDestroyed()
      */
-    public final List<PrinterInfo> getPrinters() {
+    public final @NonNull List<PrinterInfo> getPrinters() {
         PrintService.throwIfNotCalledOnMainThread();
         if (mIsDestroyed) {
             return Collections.emptyList();
@@ -161,7 +162,7 @@
      * @see #getPrinters()
      * @see #isDestroyed()
      */
-    public final void addPrinters(List<PrinterInfo> printers) {
+    public final void addPrinters(@NonNull List<PrinterInfo> printers) {
         PrintService.throwIfNotCalledOnMainThread();
 
         // If the session is destroyed - nothing do to.
@@ -225,7 +226,7 @@
      * @see #getPrinters()
      * @see #isDestroyed()
      */
-    public final void removePrinters(List<PrinterId> printerIds) {
+    public final void removePrinters(@NonNull List<PrinterId> printerIds) {
         PrintService.throwIfNotCalledOnMainThread();
 
         // If the session is destroyed - nothing do to.
@@ -350,7 +351,7 @@
      * @see #removePrinters(List)
      * @see #isPrinterDiscoveryStarted()
      */
-    public abstract void onStartPrinterDiscovery(List<PrinterId> priorityList);
+    public abstract void onStartPrinterDiscovery(@NonNull List<PrinterId> priorityList);
 
     /**
      * Callback notifying you that you should stop printer discovery.
@@ -372,10 +373,10 @@
      *
      * @param printerIds The printers to validate.
      *
-     * @see PrinterInfo.Builder#setCapabilities(PrinterCapabilitiesInfo)
+     * @see android.print.PrinterInfo.Builder#setCapabilities(PrinterCapabilitiesInfo)
      *      PrinterInfo.Builder.setCapabilities(PrinterCapabilitiesInfo)
      */
-    public abstract void onValidatePrinters(List<PrinterId> printerIds);
+    public abstract void onValidatePrinters(@NonNull List<PrinterId> printerIds);
 
     /**
      * Callback asking you to start tracking the state of a printer. Tracking
@@ -400,10 +401,24 @@
      * @param printerId The printer to start tracking.
      *
      * @see #onStopPrinterStateTracking(PrinterId)
-     * @see PrinterInfo.Builder#setCapabilities(PrinterCapabilitiesInfo)
+     * @see android.print.PrinterInfo.Builder#setCapabilities(PrinterCapabilitiesInfo)
      *      PrinterInfo.Builder.setCapabilities(PrinterCapabilitiesInfo)
      */
-    public abstract void onStartPrinterStateTracking(PrinterId printerId);
+    public abstract void onStartPrinterStateTracking(@NonNull PrinterId printerId);
+
+    /**
+     * Request the custom icon for a printer. Once the icon is available use
+     * {@link CustomPrinterIconCallback#onCustomPrinterIconLoaded} to send the data to the print
+     * service.
+     *
+     * @param printerId The printer to icon belongs to.
+     * @param callback Callback for returning the icon to the print spooler.
+     *
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public void onRequestCustomPrinterIcon(@NonNull PrinterId printerId,
+            @NonNull CustomPrinterIconCallback callback) {
+    }
 
     /**
      * Callback asking you to stop tracking the state of a printer. The passed
@@ -414,7 +429,7 @@
      *
      * @see #onStartPrinterStateTracking(PrinterId)
      */
-    public abstract void onStopPrinterStateTracking(PrinterId printerId);
+    public abstract void onStopPrinterStateTracking(@NonNull PrinterId printerId);
 
     /**
      * Gets the printers that should be tracked. These are printers that are
@@ -434,7 +449,7 @@
      * @see #onStopPrinterStateTracking(PrinterId)
      * @see #isDestroyed()
      */
-    public final List<PrinterId> getTrackedPrinters() {
+    public final @NonNull List<PrinterId> getTrackedPrinters() {
         PrintService.throwIfNotCalledOnMainThread();
         if (mIsDestroyed) {
             return Collections.emptyList();
@@ -476,7 +491,7 @@
         return mIsDiscoveryStarted;
     }
 
-    void startPrinterDiscovery(List<PrinterId> priorityList) {
+    void startPrinterDiscovery(@NonNull List<PrinterId> priorityList) {
         if (!mIsDestroyed) {
             mIsDiscoveryStarted = true;
             sendOutOfDiscoveryPeriodPrinterChanges();
@@ -494,13 +509,13 @@
         }
     }
 
-    void validatePrinters(List<PrinterId> printerIds) {
+    void validatePrinters(@NonNull List<PrinterId> printerIds) {
         if (!mIsDestroyed && mObserver != null) {
             onValidatePrinters(printerIds);
         }
     }
 
-    void startPrinterStateTracking(PrinterId printerId) {
+    void startPrinterStateTracking(@NonNull PrinterId printerId) {
         if (!mIsDestroyed && mObserver != null
                 && !mTrackedPrinters.contains(printerId)) {
             mTrackedPrinters.add(printerId);
@@ -508,7 +523,21 @@
         }
     }
 
-    void stopPrinterStateTracking(PrinterId printerId) {
+    /**
+     * Request the custom icon for a printer.
+     *
+     * @param printerId The printer to icon belongs to.
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    void requestCustomPrinterIcon(@NonNull PrinterId printerId) {
+        if (!mIsDestroyed && mObserver != null) {
+            CustomPrinterIconCallback callback = new CustomPrinterIconCallback(printerId,
+                    mObserver);
+            onRequestCustomPrinterIcon(printerId, callback);
+        }
+    }
+
+    void stopPrinterStateTracking(@NonNull PrinterId printerId) {
         if (!mIsDestroyed && mObserver != null
                 && mTrackedPrinters.remove(printerId)) {
             onStopPrinterStateTracking(printerId);
diff --git a/core/java/android/view/DragEvent.java b/core/java/android/view/DragEvent.java
index 5903d4a..71db0b5 100644
--- a/core/java/android/view/DragEvent.java
+++ b/core/java/android/view/DragEvent.java
@@ -364,20 +364,9 @@
         return mClipDescription;
     }
 
-    /**
-     * Requests the permissions for the content URIs contained in {@link android.content.ClipData}
-     * object associated with this event. Which permissions will be granted is defined by the set of
-     * flags passed to {@link View#startDragAndDrop(ClipData, View.DragShadowBuilder, Object, int)}.
-     * Returns the {@link DropPermissions} object that can be used by the receiving app to release
-     * the permissions for the content URIs when they are no longer needed.
-     * This method only returns valid data if the event action is {@link #ACTION_DROP}.
-     * @return The DropPermissions object used to control access to the content URIs.
-     */
-    public DropPermissions requestDropPermissions() {
-        if (mDropPermissions == null) {
-            return null;
-        }
-        return new DropPermissions(mDropPermissions);
+    /** @hide */
+    public IDropPermissions getDropPermissions() {
+        return mDropPermissions;
     }
 
     /**
diff --git a/core/java/android/view/DropPermissions.java b/core/java/android/view/DropPermissions.java
index 780461f..8c948a9 100644
--- a/core/java/android/view/DropPermissions.java
+++ b/core/java/android/view/DropPermissions.java
@@ -16,11 +16,27 @@
 
 package android.view;
 
+import android.os.IBinder;
 import android.os.RemoteException;
 import com.android.internal.view.IDropPermissions;
 import dalvik.system.CloseGuard;
 
 
+/**
+ * {@link DropPermissions} controls the access permissions for the content URIs associated with a
+ * {@link DragEvent}.
+ * <p>
+ * Permission are granted when this object is created by {@link
+ * android.app.Activity#requestDropPermissions(DragEvent) Activity.requestDropPermissions}.
+ * Which permissions are granted is defined by the set of flags passed to {@link
+ * View#startDragAndDrop(android.content.ClipData, View.DragShadowBuilder, Object, int)
+ * View.startDragAndDrop} by the app that started the drag operation.
+ * <p>
+ * The life cycle of the permissions is bound to the activity used to call {@link
+ * android.app.Activity#requestDropPermissions(DragEvent) requestDropPermissions}. The
+ * permissions are revoked when this activity is destroyed, or when {@link #release()} is called,
+ * whichever occurs first.
+ */
 public final class DropPermissions {
 
     private final IDropPermissions mDropPermissions;
@@ -28,21 +44,43 @@
     private final CloseGuard mCloseGuard = CloseGuard.get();
 
     /**
-     * Create a new DropPermissions object to be passed to the client with a DragEvent.
-     *
+     * Create a new {@link DropPermissions} object to control the access permissions for content
+     * URIs associated with {@link DragEvent}.
+     * @param dragEvent Drag event
+     * @return {@link DropPermissions} object or null if there are no content URIs associated with
+     * the {@link DragEvent}.
      * @hide
      */
-    DropPermissions(IDropPermissions dropPermissions) {
-        mDropPermissions = dropPermissions;
-        try {
-            mDropPermissions.take();
-        } catch (RemoteException e) {
+    public static DropPermissions obtain(DragEvent dragEvent) {
+        if (dragEvent.getDropPermissions() == null) {
+            return null;
         }
-        mCloseGuard.open("release");
+        return new DropPermissions(dragEvent.getDropPermissions());
+    }
+
+    /** @hide */
+    private DropPermissions(IDropPermissions dropPermissions) {
+        mDropPermissions = dropPermissions;
     }
 
     /**
-     * Revoke permissions taken by {@link DragEvent#requestDropPermissions()}.
+     * Take the permissions and bind their lifetime to the activity.
+     * @param activityToken Binder pointing to an Activity instance to bind the lifetime to.
+     * @return True if permissions are successfully taken.
+     * @hide
+     */
+    public boolean take(IBinder activityToken) {
+        try {
+            mDropPermissions.take(activityToken);
+        } catch (RemoteException e) {
+            return false;
+        }
+        mCloseGuard.open("release");
+        return true;
+    }
+
+    /**
+     * Revoke permissions explicitly.
      */
     public void release() {
         try {
diff --git a/core/java/android/view/Surface.java b/core/java/android/view/Surface.java
index 394660f..ef50fdc 100644
--- a/core/java/android/view/Surface.java
+++ b/core/java/android/view/Surface.java
@@ -57,6 +57,7 @@
     private static native int nativeGetHeight(long nativeObject);
 
     private static native long nativeGetNextFrameNumber(long nativeObject);
+    private static native int nativeSetScalingMode(long nativeObject, int scalingMode);
 
     public static final Parcelable.Creator<Surface> CREATOR =
             new Parcelable.Creator<Surface>() {
@@ -95,6 +96,21 @@
     private HwuiContext mHwuiContext;
 
     /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({SCALING_MODE_FREEZE, SCALING_MODE_SCALE_TO_WINDOW,
+                    SCALING_MODE_SCALE_CROP, SCALING_MODE_NO_SCALE_CROP})
+    public @interface ScalingMode {}
+    // From system/window.h
+    /** @hide */
+    static final int SCALING_MODE_FREEZE = 0;
+    /** @hide */
+    static final int SCALING_MODE_SCALE_TO_WINDOW = 1;
+    /** @hide */
+    static final int SCALING_MODE_SCALE_CROP = 2;
+    /** @hide */
+    static final int SCALING_MODE_NO_SCALE_CROP = 3;
+
+    /** @hide */
     @IntDef({ROTATION_0, ROTATION_90, ROTATION_180, ROTATION_270})
     @Retention(RetentionPolicy.SOURCE)
     public @interface Rotation {}
@@ -500,6 +516,20 @@
     }
 
     /**
+     * Set the scaling mode to be used for this surfaces buffers
+     * @hide
+     */
+    void setScalingMode(@ScalingMode int scalingMode) {
+        synchronized (mLock) {
+            checkNotReleasedLocked();
+            int err = nativeSetScalingMode(mNativeObject, scalingMode);
+            if (err != 0) {
+                throw new IllegalArgumentException("Invalid scaling mode: " + scalingMode);
+            }
+        }
+    }
+
+    /**
      * Exception thrown when a Canvas couldn't be locked with {@link Surface#lockCanvas}, or
      * when a SurfaceTexture could not successfully be allocated.
      */
diff --git a/core/java/android/view/SurfaceView.java b/core/java/android/view/SurfaceView.java
index 589c0dc..f4fa980 100644
--- a/core/java/android/view/SurfaceView.java
+++ b/core/java/android/view/SurfaceView.java
@@ -578,8 +578,19 @@
                     }
 
                     mSurface.transferFrom(mNewSurface);
-
                     if (visible && mSurface.isValid()) {
+                        // We set SCALING_MODE_NO_SCALE_CROP to allow the WindowManager
+                        // to update our Surface crop without requiring a new buffer from
+                        // us. In the default mode of SCALING_MODE_FREEZE, surface geometry
+                        // state (which includes crop) is only applied when a buffer
+                        // with appropriate geometry is available. During drag resize
+                        // it is quite frequent that a matching buffer will not be available
+                        // (because we are constantly being resized and have fallen behind).
+                        // However in such situations the WindowManager still needs to be able
+                        // to update our crop to ensure we stay within the bounds of the containing
+                        // window.
+                        mSurface.setScalingMode(Surface.SCALING_MODE_NO_SCALE_CROP);
+
                         if (!mSurfaceCreated && (surfaceChanged || visibleChanged)) {
                             mSurfaceCreated = true;
                             mIsCreating = true;
diff --git a/core/java/com/android/internal/view/IDropPermissions.aidl b/core/java/com/android/internal/view/IDropPermissions.aidl
index 86d27e7..2438bda 100644
--- a/core/java/com/android/internal/view/IDropPermissions.aidl
+++ b/core/java/com/android/internal/view/IDropPermissions.aidl
@@ -16,11 +16,13 @@
 
 package com.android.internal.view;
 
+import android.os.IBinder;
+
 /**
  * Interface to allow a drop receiver to request permissions for URIs passed along with ClipData
  * contained in DragEvent.
  */
 interface IDropPermissions {
-    void take();
+    void take(IBinder activityToken);
     void release();
 }
diff --git a/core/jni/android_view_Surface.cpp b/core/jni/android_view_Surface.cpp
index f6e68c4..cf68449 100644
--- a/core/jni/android_view_Surface.cpp
+++ b/core/jni/android_view_Surface.cpp
@@ -465,11 +465,17 @@
     anw->query(anw, NATIVE_WINDOW_HEIGHT, &value);
     return value;
 }
+
 static jlong nativeGetNextFrameNumber(JNIEnv *env, jclass clazz, jlong nativeObject) {
     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
     return surface->getNextFrameNumber();
 }
 
+static jint nativeSetScalingMode(JNIEnv *env, jclass clazz, jlong nativeObject, jint scalingMode) {
+    Surface* surface = reinterpret_cast<Surface*>(nativeObject);
+    return surface->setScalingMode(scalingMode);
+}
+
 namespace uirenderer {
 
 using namespace android::uirenderer::renderthread;
@@ -546,6 +552,7 @@
     {"nativeGetWidth", "(J)I", (void*)nativeGetWidth },
     {"nativeGetHeight", "(J)I", (void*)nativeGetHeight },
     {"nativeGetNextFrameNumber", "(J)J", (void*)nativeGetNextFrameNumber },
+    {"nativeSetScalingMode", "(JI)I", (void*)nativeSetScalingMode },
 
     // HWUI context
     {"nHwuiCreate", "(JJ)J", (void*) hwui::create },
diff --git a/graphics/java/android/graphics/drawable/Icon.aidl b/graphics/java/android/graphics/drawable/Icon.aidl
new file mode 100644
index 0000000..b82cfc4
--- /dev/null
+++ b/graphics/java/android/graphics/drawable/Icon.aidl
@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.graphics.drawable;
+
+parcelable Icon;
diff --git a/packages/DocumentsUI/res/layout/item_dir_grid.xml b/packages/DocumentsUI/res/layout/item_dir_grid.xml
new file mode 100644
index 0000000..c17b4c8
--- /dev/null
+++ b/packages/DocumentsUI/res/layout/item_dir_grid.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="@dimen/grid_item_margin"
+    android:background="@color/item_doc_background"
+    android:elevation="5dp"
+    android:focusable="true">
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:orientation="horizontal"
+      android:paddingTop="16dp"
+      android:paddingBottom="16dp"
+      android:paddingLeft="12dp"
+      android:paddingRight="12dp">
+
+        <ImageView
+            android:src="@drawable/ic_doc_folder"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_marginEnd="8dp"
+            android:scaleType="centerInside"
+            android:contentDescription="@null"/>
+
+        <TextView
+            android:id="@android:id/title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:singleLine="true"
+            android:ellipsize="middle"
+            android:textAlignment="viewStart"
+            android:textAppearance="@android:style/TextAppearance.Material.Subhead"
+            android:textColor="@*android:color/primary_text_default_material_light" />
+
+    </LinearLayout>
+
+    <!-- An overlay that draws the item border when it is focused. -->
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:contentDescription="@null"
+        android:background="@drawable/item_doc_grid_border"
+        android:duplicateParentState="true" />
+
+</FrameLayout>
diff --git a/packages/DocumentsUI/res/layout/item_doc_grid.xml b/packages/DocumentsUI/res/layout/item_doc_grid.xml
index dcd5cfd..c0fc2c3 100644
--- a/packages/DocumentsUI/res/layout/item_doc_grid.xml
+++ b/packages/DocumentsUI/res/layout/item_doc_grid.xml
@@ -19,6 +19,7 @@
     android:layout_height="wrap_content"
     android:layout_margin="@dimen/grid_item_margin"
     android:background="@color/item_doc_background"
+    android:elevation="5dp"
     android:focusable="true">
 
     <!-- Main item thumbnail.  Comprised of two overlapping images, the
diff --git a/packages/DocumentsUI/res/values-sw720dp/dimens.xml b/packages/DocumentsUI/res/values-sw720dp/dimens.xml
index 83ceb55..2488fa2 100644
--- a/packages/DocumentsUI/res/values-sw720dp/dimens.xml
+++ b/packages/DocumentsUI/res/values-sw720dp/dimens.xml
@@ -18,5 +18,4 @@
     <dimen name="grid_padding_horiz">16dp</dimen>
     <dimen name="grid_padding_vert">16dp</dimen>
 
-    <dimen name="grid_item_margin">8dp</dimen>
 </resources>
diff --git a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
index 5cb3b0d..9c0a04c 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
@@ -755,11 +755,19 @@
          *     search currently.
          */
         boolean cancelSearch() {
+            boolean collapsed = false;
+            boolean closed = false;
+
             if (mActionBar.hasExpandedActionView()) {
                 mActionBar.collapseActionView();
-                return true;
+                collapsed = true;
             }
-            return false;
+
+            if (isExpanded() || isSearching()) {
+                onClose();
+                closed = true;
+            }
+            return collapsed || closed;
         }
 
         boolean isSearching() {
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
index 035ae77..0d5e34e 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
@@ -964,7 +964,16 @@
             final State state = getDisplayState();
             switch (state.derivedMode) {
                 case MODE_GRID:
-                    holder = new GridDocumentHolder(getContext(), parent, mIconHelper, viewType);
+                    switch (viewType) {
+                        case ITEM_TYPE_DIRECTORY:
+                            holder = new GridDirectoryHolder(getContext(), parent);
+                            break;
+                        case ITEM_TYPE_DOCUMENT:
+                            holder = new GridDocumentHolder(getContext(), parent, mIconHelper);
+                            break;
+                        default:
+                            throw new IllegalStateException("Unsupported layout type.");
+                    }
                     break;
                 case MODE_LIST:
                     holder = new ListDocumentHolder(getContext(), parent, mIconHelper);
@@ -1031,7 +1040,10 @@
         @Override
         public void onModelUpdate(Model model) {
             mModelIds = Lists.newArrayList(model.getModelIds());
-            mDividerPosition = 0;
+            // Start the divider at the end. That way if the code below encounters no documents
+            // (i.e. in a directory containing only directories), the divider is placed at the end
+            // of the list, as expected.
+            mDividerPosition = mModelIds.size();
 
             // Walk down the list of IDs till we encounter something that's not a directory, and
             // insert a whitespace element - this introduces a visual break in the grid between
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DocumentHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DocumentHolder.java
index a01021f..9ac9057 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DocumentHolder.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DocumentHolder.java
@@ -40,16 +40,15 @@
     final int mDefaultItemColor;
     final boolean mAlwaysShowSummary;
     final Context mContext;
-    final IconHelper mIconHelper;
 
     private ListDocumentHolder.ClickListener mClickListener;
     private View.OnKeyListener mKeyListener;
 
-    public DocumentHolder(Context context, ViewGroup parent, int layout, IconHelper iconHelper) {
-        this(context, inflateLayout(context, parent, layout), iconHelper);
+    public DocumentHolder(Context context, ViewGroup parent, int layout) {
+        this(context, inflateLayout(context, parent, layout));
     }
 
-    public DocumentHolder(Context context, View item, IconHelper iconHelper) {
+    public DocumentHolder(Context context, View item) {
         super(item);
 
         itemView.setOnKeyListener(this);
@@ -59,8 +58,6 @@
         mDefaultItemColor = context.getColor(R.color.item_doc_background);
         mSelectedItemColor = context.getColor(R.color.item_doc_background_selected);
         mAlwaysShowSummary = context.getResources().getBoolean(R.bool.always_show_summary);
-
-        mIconHelper = iconHelper;
     }
 
     /**
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/EmptyDocumentHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/EmptyDocumentHolder.java
index 0bdf530..ab67a5b 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/EmptyDocumentHolder.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/EmptyDocumentHolder.java
@@ -18,14 +18,18 @@
 
 import android.content.Context;
 import android.database.Cursor;
-import android.view.View;
+import android.widget.Space;
 
+import com.android.documentsui.R;
 import com.android.documentsui.State;
 
 final class EmptyDocumentHolder extends DocumentHolder {
     public EmptyDocumentHolder(Context context) {
-        super(context, new View(context), null);
-        itemView.setVisibility(View.GONE);
+        super(context, new Space(context));
+
+        // Per UX spec, this puts a bigger gap between the folders and documents in the grid.
+        final int gridMargin = context.getResources().getDimensionPixelSize(R.dimen.grid_item_margin);
+        itemView.setMinimumHeight(gridMargin * 2);
     }
 
     public void bind(Cursor cursor, String modelId, State state) {
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDirectoryHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDirectoryHolder.java
new file mode 100644
index 0000000..11ff263
--- /dev/null
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDirectoryHolder.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.documentsui.dirlist;
+
+import static com.android.documentsui.model.DocumentInfo.getCursorString;
+import static com.android.internal.util.Preconditions.checkNotNull;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.provider.DocumentsContract.Document;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.android.documentsui.R;
+import com.android.documentsui.State;
+
+final class GridDirectoryHolder extends DocumentHolder {
+    final TextView mTitle;
+    public GridDirectoryHolder(Context context, ViewGroup parent) {
+        super(context, parent, R.layout.item_dir_grid);
+
+        mTitle = (TextView) itemView.findViewById(android.R.id.title);
+    }
+
+    /**
+     * Bind this view to the given document for display.
+     * @param cursor Pointing to the item to be bound.
+     * @param modelId The model ID of the item.
+     * @param state Current display state.
+     */
+    public void bind(Cursor cursor, String modelId, State state) {
+        checkNotNull(cursor, "Cursor cannot be null.");
+
+        this.modelId = modelId;
+
+        final String docDisplayName = getCursorString(cursor, Document.COLUMN_DISPLAY_NAME);
+        mTitle.setText(docDisplayName);
+    }
+}
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDocumentHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDocumentHolder.java
index 43256c3..63c667b 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDocumentHolder.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/GridDocumentHolder.java
@@ -40,9 +40,22 @@
 final class GridDocumentHolder extends DocumentHolder {
     private static boolean mHideTitles;
 
-    public GridDocumentHolder(
-            Context context, ViewGroup parent, IconHelper thumbnailLoader, int viewType) {
-        super(context, parent, R.layout.item_doc_grid, thumbnailLoader);
+    final TextView mTitle;
+    final TextView mDate;
+    final TextView mSize;
+    final ImageView mIconMime;
+    final ImageView mIconThumb;
+    final IconHelper mIconHelper;
+
+    public GridDocumentHolder(Context context, ViewGroup parent, IconHelper iconHelper) {
+        super(context, parent, R.layout.item_doc_grid);
+
+        mTitle = (TextView) itemView.findViewById(android.R.id.title);
+        mDate = (TextView) itemView.findViewById(R.id.date);
+        mSize = (TextView) itemView.findViewById(R.id.size);
+        mIconMime = (ImageView) itemView.findViewById(R.id.icon_mime);
+        mIconThumb = (ImageView) itemView.findViewById(R.id.icon_thumb);
+        mIconHelper = iconHelper;
     }
 
     /**
@@ -65,40 +78,34 @@
         final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS);
         final long docSize = getCursorLong(cursor, Document.COLUMN_SIZE);
 
-        final TextView title = (TextView) itemView.findViewById(android.R.id.title);
-        final TextView date = (TextView) itemView.findViewById(R.id.date);
-        final TextView size = (TextView) itemView.findViewById(R.id.size);
-        final ImageView iconMime = (ImageView) itemView.findViewById(R.id.icon_mime);
-        final ImageView iconThumb = (ImageView) itemView.findViewById(R.id.icon_thumb);
+        mIconHelper.stopLoading(mIconThumb);
 
-        mIconHelper.stopLoading(iconThumb);
-
-        iconMime.animate().cancel();
-        iconMime.setAlpha(1f);
-        iconThumb.animate().cancel();
-        iconThumb.setAlpha(0f);
+        mIconMime.animate().cancel();
+        mIconMime.setAlpha(1f);
+        mIconThumb.animate().cancel();
+        mIconThumb.setAlpha(0f);
 
         final Uri uri = DocumentsContract.buildDocumentUri(docAuthority, docId);
-        mIconHelper.loadThumbnail(uri, docMimeType, docFlags, docIcon, iconThumb, iconMime);
+        mIconHelper.loadThumbnail(uri, docMimeType, docFlags, docIcon, mIconThumb, mIconMime);
 
         if (mHideTitles) {
-            title.setVisibility(View.GONE);
+            mTitle.setVisibility(View.GONE);
         } else {
-            title.setText(docDisplayName);
-            title.setVisibility(View.VISIBLE);
+            mTitle.setText(docDisplayName);
+            mTitle.setVisibility(View.VISIBLE);
         }
 
         if (docLastModified == -1) {
-            date.setText(null);
+            mDate.setText(null);
         } else {
-            date.setText(Shared.formatTime(mContext, docLastModified));
+            mDate.setText(Shared.formatTime(mContext, docLastModified));
         }
 
         if (!state.showSize || Document.MIME_TYPE_DIR.equals(docMimeType) || docSize == -1) {
-            size.setVisibility(View.GONE);
+            mSize.setVisibility(View.GONE);
         } else {
-            size.setVisibility(View.VISIBLE);
-            size.setText(Formatter.formatFileSize(mContext, docSize));
+            mSize.setVisibility(View.VISIBLE);
+            mSize.setText(Formatter.formatFileSize(mContext, docSize));
         }
     }
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
index b46a0e5a..c22e91d 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
@@ -38,16 +38,27 @@
 import com.android.documentsui.State;
 
 final class ListDocumentHolder extends DocumentHolder {
+    final TextView mTitle;
+    final TextView mSummary;
+    final TextView mDate;
+    final TextView mSize;
     final ImageView mIconMime;
     final ImageView mIconThumb;
     final ImageView mIcon1;
+    final IconHelper mIconHelper;
 
-    public ListDocumentHolder(Context context, ViewGroup parent, IconHelper thumbnailLoader) {
-        super(context, parent, R.layout.item_doc_list, thumbnailLoader);
+    public ListDocumentHolder(Context context, ViewGroup parent, IconHelper iconHelper) {
+        super(context, parent, R.layout.item_doc_list);
 
+        mTitle = (TextView) itemView.findViewById(android.R.id.title);
+        mSummary = (TextView) itemView.findViewById(android.R.id.summary);
+        mDate = (TextView) itemView.findViewById(R.id.date);
+        mSize = (TextView) itemView.findViewById(R.id.size);
         mIconMime = (ImageView) itemView.findViewById(R.id.icon_mime);
         mIconThumb = (ImageView) itemView.findViewById(R.id.icon_thumb);
         mIcon1 = (ImageView) itemView.findViewById(android.R.id.icon1);
+
+        mIconHelper = iconHelper;
     }
 
     /**
@@ -72,11 +83,6 @@
         final String docSummary = getCursorString(cursor, Document.COLUMN_SUMMARY);
         final long docSize = getCursorLong(cursor, Document.COLUMN_SIZE);
 
-        final TextView title = (TextView) itemView.findViewById(android.R.id.title);
-        final TextView summary = (TextView) itemView.findViewById(android.R.id.summary);
-        final TextView date = (TextView) itemView.findViewById(R.id.date);
-        final TextView size = (TextView) itemView.findViewById(R.id.size);
-
         mIconHelper.stopLoading(mIconThumb);
 
         mIconMime.animate().cancel();
@@ -85,27 +91,27 @@
         final Uri uri = DocumentsContract.buildDocumentUri(docAuthority, docId);
         mIconHelper.loadThumbnail(uri, docMimeType, docFlags, docIcon, mIconThumb, mIconMime);
 
-        title.setText(docDisplayName);
-        title.setVisibility(View.VISIBLE);
+        mTitle.setText(docDisplayName);
+        mTitle.setVisibility(View.VISIBLE);
 
         if (docSummary != null) {
-            summary.setText(docSummary);
-            summary.setVisibility(View.VISIBLE);
+            mSummary.setText(docSummary);
+            mSummary.setVisibility(View.VISIBLE);
         } else {
-            summary.setVisibility(View.INVISIBLE);
+            mSummary.setVisibility(View.INVISIBLE);
         }
 
         if (docLastModified == -1) {
-            date.setText(null);
+            mDate.setText(null);
         } else {
-            date.setText(Shared.formatTime(mContext, docLastModified));
+            mDate.setText(Shared.formatTime(mContext, docLastModified));
         }
 
         if (!state.showSize || Document.MIME_TYPE_DIR.equals(docMimeType) || docSize == -1) {
-            size.setVisibility(View.GONE);
+            mSize.setVisibility(View.GONE);
         } else {
-            size.setVisibility(View.VISIBLE);
-            size.setText(Formatter.formatFileSize(mContext, docSize));
+            mSize.setVisibility(View.VISIBLE);
+            mSize.setText(Formatter.formatFileSize(mContext, docSize));
         }
     }
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
index 26eac26..e47af67 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
@@ -383,6 +383,10 @@
      * @param position
      */
     void setSelectionRangeBegin(int position) {
+        if (position == RecyclerView.NO_POSITION) {
+            return;
+        }
+
         if (mSelection.contains(mEnvironment.getModelIdFromAdapterPosition(position))) {
             mRanger = new Range(position);
         }
@@ -1160,13 +1164,15 @@
             mSelection.applyProvisionalSelection();
             mModel.endSelection();
             int firstSelected = mModel.getPositionNearestOrigin();
-            if (!mSelection.contains(mEnvironment.getModelIdFromAdapterPosition(firstSelected))) {
-                Log.w(TAG, "First selected by band is NOT in selection!");
-                // Sadly this is really happening. Need to figure out what's going on.
-            } else if (firstSelected != NOT_SET) {
-                // TODO: firstSelected should really be lastSelected, we want to anchor the item
-                // where the mouse-up occurred.
-                setSelectionRangeBegin(firstSelected);
+            if (firstSelected != NOT_SET) {
+                if (mSelection.contains(mEnvironment.getModelIdFromAdapterPosition(firstSelected))) {
+                    // TODO: firstSelected should really be lastSelected, we want to anchor the item
+                    // where the mouse-up occurred.
+                    setSelectionRangeBegin(firstSelected);
+                } else {
+                    // TODO: Check if this is really happening.
+                    Log.w(TAG, "First selected by band is NOT in selection!");
+                }
             }
 
             mModel = null;
@@ -1558,18 +1564,22 @@
             for (int column = columnStartIndex; column <= columnEndIndex; column++) {
                 SparseIntArray items = mColumns.get(mColumnBounds.get(column).lowerLimit);
                 for (int row = rowStartIndex; row <= rowEndIndex; row++) {
-                    int position = items.get(items.keyAt(row));
-                    String id = mHelper.getModelIdFromAdapterPosition(position);
-                    if (id != null) {
-                        // The adapter inserts items for UI layout purposes that aren't associated
-                        // with files.  Those will have a null model ID.  Don't select them.
-                        mSelection.add(id);
-                    }
-                    if (isPossiblePositionNearestOrigin(column, columnStartIndex, columnEndIndex,
-                            row, rowStartIndex, rowEndIndex)) {
-                        // If this is the position nearest the origin, record it now so that it
-                        // can be returned by endSelection() later.
-                        mPositionNearestOrigin = position;
+                    // The default return value for SparseIntArray.get is 0, which is a valid
+                    // position. Use a sentry value to prevent erroneously selecting item 0.
+                    int position = items.get(items.keyAt(row), NOT_SET);
+                    if (position != NOT_SET) {
+                        String id = mHelper.getModelIdFromAdapterPosition(position);
+                        if (id != null) {
+                            // The adapter inserts items for UI layout purposes that aren't associated
+                            // with files.  Those will have a null model ID.  Don't select them.
+                            mSelection.add(id);
+                        }
+                        if (isPossiblePositionNearestOrigin(column, columnStartIndex, columnEndIndex,
+                                row, rowStartIndex, rowEndIndex)) {
+                            // If this is the position nearest the origin, record it now so that it
+                            // can be returned by endSelection() later.
+                            mPositionNearestOrigin = position;
+                        }
                     }
                 }
             }
diff --git a/packages/PrintSpooler/AndroidManifest.xml b/packages/PrintSpooler/AndroidManifest.xml
index 5a6f1d1..937eb15 100644
--- a/packages/PrintSpooler/AndroidManifest.xml
+++ b/packages/PrintSpooler/AndroidManifest.xml
@@ -17,9 +17,7 @@
  */
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.android.printspooler"
-    android:versionName="1"
-    android:versionCode="1">
+    package="com.android.printspooler">
 
     <!-- Allows an application to call APIs that give it access to all print jobs
          on the device. Usually an app can access only the print jobs it created. -->
diff --git a/packages/PrintSpooler/res/drawable/ic_info.xml b/packages/PrintSpooler/res/drawable/ic_info.xml
new file mode 100644
index 0000000..2ecd1c7
--- /dev/null
+++ b/packages/PrintSpooler/res/drawable/ic_info.xml
@@ -0,0 +1,24 @@
+<!--
+    Copyright (C) 2015 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,17h-2v-6h2v6zM13,9h-2L11,7h2v2z"
+        android:fillColor="#757575"/>
+</vector>
\ No newline at end of file
diff --git a/packages/PrintSpooler/res/layout/printer_dropdown_item.xml b/packages/PrintSpooler/res/layout/printer_dropdown_item.xml
index 4381a7a..e0efbc4 100644
--- a/packages/PrintSpooler/res/layout/printer_dropdown_item.xml
+++ b/packages/PrintSpooler/res/layout/printer_dropdown_item.xml
@@ -62,7 +62,7 @@
             android:ellipsize="end"
             android:textIsSelectable="false"
             android:visibility="gone"
-            android:textColor="?android:attr/textColorPrimary"
+            android:textColor="?android:attr/textColorSecondary"
             android:duplicateParentState="true">
         </TextView>
 
diff --git a/packages/PrintSpooler/res/layout/printer_list_item.xml b/packages/PrintSpooler/res/layout/printer_list_item.xml
index 7bc144a..50f44c2 100644
--- a/packages/PrintSpooler/res/layout/printer_list_item.xml
+++ b/packages/PrintSpooler/res/layout/printer_list_item.xml
@@ -38,6 +38,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:orientation="vertical"
+        android:layout_weight="1"
         android:duplicateParentState="true">
 
         <TextView
@@ -62,10 +63,20 @@
             android:ellipsize="end"
             android:textIsSelectable="false"
             android:visibility="gone"
-            android:textColor="?android:attr/textColorPrimary"
+            android:textColor="?android:attr/textColorSecondary"
             android:duplicateParentState="true">
         </TextView>
 
     </LinearLayout>
 
+    <ImageView
+        android:id="@+id/more_info"
+        android:layout_width="24dip"
+        android:layout_height="24dip"
+        android:layout_gravity="center_vertical"
+        android:contentDescription="@string/printer_info_desc"
+        android:src="@drawable/ic_info"
+        android:visibility="gone">
+    </ImageView>
+
 </LinearLayout>
diff --git a/packages/PrintSpooler/res/values/strings.xml b/packages/PrintSpooler/res/values/strings.xml
index 6d81788..97a7bff 100644
--- a/packages/PrintSpooler/res/values/strings.xml
+++ b/packages/PrintSpooler/res/values/strings.xml
@@ -144,6 +144,12 @@
         <item quantity="other"><xliff:g id="count" example="2">%1$s</xliff:g> printers found</item>
     </plurals>
 
+    <!-- Template for an extended description of a printer. [CHAR LIMIT=50] -->
+    <string name="printer_extended_description_template"><xliff:g id="print_service_label" example="Canon Print Service">%1$s</xliff:g> - <xliff:g id="printer_description" example="Printer under the stairs">%2$s</xliff:g></string>
+
+    <!-- Description of printer info icon. [CHAR LIMIT=50] -->
+    <string name="printer_info_desc">More information about this printer</string>
+
     <!-- Add printer dialog  -->
 
     <!-- Title for the alert dialog for selecting a print service. [CHAR LIMIT=50] -->
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/CustomPrinterIconCache.java b/packages/PrintSpooler/src/com/android/printspooler/model/CustomPrinterIconCache.java
new file mode 100644
index 0000000..7274268
--- /dev/null
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/CustomPrinterIconCache.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.printspooler.model;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.graphics.drawable.Icon;
+import android.print.PrinterId;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.SortedMap;
+import java.util.TreeMap;
+
+/**
+ * A fixed size cache for custom printer icons. Old icons get removed with a last recently used
+ * policy.
+ */
+public class CustomPrinterIconCache {
+
+    private final static String LOG_TAG = "CustomPrinterIconCache";
+
+    /** Maximum number of icons in the cache */
+    private final static int MAX_SIZE = 1024;
+
+    /** Directory used to persist state and icons */
+    private final File mCacheDirectory;
+
+    /**
+     * Create a new icon cache.
+     */
+    public CustomPrinterIconCache(@NonNull File cacheDirectory) {
+        mCacheDirectory = new File(cacheDirectory, "icons");
+        if (!mCacheDirectory.exists()) {
+            mCacheDirectory.mkdir();
+        }
+    }
+
+    /**
+     * Return the file name to be used for the icon of a printer
+     *
+     * @param printerId the id of the printer
+     *
+     * @return The file to be used for the icon of the printer
+     */
+    private @Nullable File getIconFileName(@NonNull PrinterId printerId) {
+        StringBuffer sb = new StringBuffer(printerId.getServiceName().getPackageName());
+        sb.append("-");
+
+        try {
+            MessageDigest md = MessageDigest.getInstance("SHA-1");
+            md.update(
+                    (printerId.getServiceName().getClassName() + ":" + printerId.getLocalId())
+                            .getBytes("UTF-16"));
+            sb.append(String.format("%#040x", new java.math.BigInteger(1, md.digest())));
+        } catch (UnsupportedEncodingException|NoSuchAlgorithmException e) {
+            Log.e(LOG_TAG, "Could not compute custom printer icon file name", e);
+            return null;
+        }
+
+        return new File(mCacheDirectory, sb.toString());
+    }
+
+    /**
+     * Get the {@link Icon} to be used as a custom icon for the printer. If not available request
+     * the icon to be loaded.
+     *
+     * @param printerId the printer the icon belongs to
+     * @return the {@link Icon} if already available or null if icon is not loaded yet
+     */
+    public synchronized @Nullable Icon getIcon(@NonNull PrinterId printerId) {
+        Icon icon;
+
+        File iconFile = getIconFileName(printerId);
+        if (iconFile != null && iconFile.exists()) {
+            try (FileInputStream is = new FileInputStream(iconFile)) {
+                icon = Icon.createFromStream(is);
+            } catch (IOException e) {
+                icon = null;
+                Log.e(LOG_TAG, "Could not read icon from " + iconFile, e);
+            }
+
+            // Touch file so that it is the not likely to be removed
+            iconFile.setLastModified(System.currentTimeMillis());
+        } else {
+            icon = null;
+        }
+
+        return icon;
+    }
+
+    /**
+     * Remove old icons so that only between numFilesToKeep and twice as many icons are left.
+     *
+     * @param numFilesToKeep the number of icons to keep
+     */
+    public void removeOldFiles(int numFilesToKeep) {
+        File files[] = mCacheDirectory.listFiles();
+
+        // To reduce the number of shrink operations, let the cache grow to twice the max size
+        if (files.length > numFilesToKeep * 2) {
+            SortedMap<Long, File> sortedFiles = new TreeMap<>();
+
+            for (File f : files) {
+                sortedFiles.put(f.lastModified(), f);
+            }
+
+            while (sortedFiles.size() > numFilesToKeep) {
+                sortedFiles.remove(sortedFiles.firstKey());
+            }
+        }
+    }
+
+    /**
+     * Handle that a custom icon for a printer was loaded
+     *
+     * @param printerId the id of the printer the icon belongs to
+     * @param icon the icon that was loaded
+     */
+    public synchronized void onCustomPrinterIconLoaded(@NonNull PrinterId printerId,
+            @Nullable Icon icon) {
+        File iconFile = getIconFileName(printerId);
+
+        if (iconFile == null) {
+            return;
+        }
+
+        try (FileOutputStream os = new FileOutputStream(iconFile)) {
+            icon.writeToStream(os);
+        } catch (IOException e) {
+            Log.e(LOG_TAG, "Could not write icon for " + printerId + " to storage", e);
+        }
+
+        removeOldFiles(MAX_SIZE);
+    }
+
+    /**
+     * Clear all persisted and non-persisted state from this cache.
+     */
+    public synchronized void clear() {
+        for (File f : mCacheDirectory.listFiles()) {
+            f.delete();
+        }
+    }
+}
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/PageContentRepository.java b/packages/PrintSpooler/src/com/android/printspooler/model/PageContentRepository.java
index ea6281d..ac97ad0 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/PageContentRepository.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/PageContentRepository.java
@@ -116,6 +116,7 @@
             });
             return;
         }
+        mCloseGuard.close();
 
         mState = STATE_DESTROYED;
         if (DEBUG) {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java b/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
index 90eef83..496a0b0 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
@@ -23,6 +23,7 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.drawable.Icon;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.IBinder;
@@ -109,6 +110,9 @@
 
     private NotificationController mNotificationController;
 
+    /** Cache for custom printer icons loaded from the print service */
+    private CustomPrinterIconCache mCustomIconCache;
+
     public static PrintSpoolerService peekInstance() {
         synchronized (sLock) {
             return sInstance;
@@ -123,6 +127,7 @@
 
         mPersistanceManager = new PersistenceManager();
         mNotificationController = new NotificationController(PrintSpoolerService.this);
+        mCustomIconCache = new CustomPrinterIconCache(getCacheDir());
 
         synchronized (mLock) {
             mPersistanceManager.readStateLocked();
@@ -135,6 +140,11 @@
     }
 
     @Override
+    public void onDestroy() {
+        super.onDestroy();
+    }
+
+    @Override
     public IBinder onBind(Intent intent) {
         return new PrintSpooler();
     }
@@ -703,6 +713,37 @@
         }.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, (Void[]) null);
     }
 
+    /**
+     * Handle that a custom icon for a printer was loaded.
+     *
+     * @param printerId the id of the printer the icon belongs to
+     * @param icon the icon that was loaded
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public void onCustomPrinterIconLoaded(PrinterId printerId, Icon icon) {
+        mCustomIconCache.onCustomPrinterIconLoaded(printerId, icon);
+    }
+
+    /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @return the custom icon to be used for the printer or null if the icon is
+     *         not yet available
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public Icon getCustomPrinterIcon(PrinterId printerId) {
+        return mCustomIconCache.getIcon(printerId);
+    }
+
+    /**
+     * Clear the custom printer icon cache.
+     */
+    public void clearCustomPrinterIconCache() {
+        mCustomIconCache.clear();
+    }
+
     private final class PersistenceManager {
         private static final String PERSIST_FILE_NAME = "print_spooler_state.xml";
 
@@ -1262,7 +1303,7 @@
         }
 
         private void expect(XmlPullParser parser, int type, String tag)
-                throws IOException, XmlPullParserException {
+                throws XmlPullParserException {
             if (!accept(parser, type, tag)) {
                 throw new XmlPullParserException("Exepected event: " + type
                         + " and tag: " + tag + " but got event: " + parser.getEventType()
@@ -1279,7 +1320,7 @@
         }
 
         private boolean accept(XmlPullParser parser, int type, String tag)
-                throws IOException, XmlPullParserException {
+                throws XmlPullParserException {
             if (parser.getEventType() != type) {
                 return false;
             }
@@ -1395,5 +1436,38 @@
         public PrintSpoolerService getService() {
             return PrintSpoolerService.this;
         }
+
+        @Override
+        public void onCustomPrinterIconLoaded(PrinterId printerId, Icon icon,
+                IPrintSpoolerCallbacks callbacks, int sequence)
+                throws RemoteException {
+            try {
+                PrintSpoolerService.this.onCustomPrinterIconLoaded(printerId, icon);
+            } finally {
+                callbacks.onCustomPrinterIconCached(sequence);
+            }
+        }
+
+        @Override
+        public void getCustomPrinterIcon(PrinterId printerId, IPrintSpoolerCallbacks callbacks,
+                int sequence) throws RemoteException {
+            Icon icon = null;
+            try {
+                icon = PrintSpoolerService.this.getCustomPrinterIcon(printerId);
+            } finally {
+                callbacks.onGetCustomPrinterIconResult(icon, sequence);
+            }
+        }
+
+        @Override
+        public void clearCustomPrinterIconCache(IPrintSpoolerCallbacks callbacks,
+                int sequence) throws RemoteException {
+            try {
+                PrintSpoolerService.this.clearCustomPrinterIconCache();
+            } finally {
+                callbacks.customPrinterIconCacheCleared(sequence);
+            }
+        }
+
     }
 }
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
index 1b6e9ce..ea11ae4 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
@@ -870,7 +870,7 @@
         private final MutexFileProvider mFileProvider;
 
         private final IWriteResultCallback mRemoteResultCallback;
-        private final CommandDoneCallback mDoneCallback;
+        private final CommandDoneCallback mWriteDoneCallback;
 
         private final Context mContext;
         private final Handler mHandler;
@@ -885,7 +885,7 @@
             mPageCount = pageCount;
             mPages = Arrays.copyOf(pages, pages.length);
             mFileProvider = fileProvider;
-            mDoneCallback = callback;
+            mWriteDoneCallback = callback;
         }
 
         @Override
@@ -997,7 +997,7 @@
             mCancellation = null;
 
             // Done.
-            mDoneCallback.onDone();
+            mWriteDoneCallback.onDone();
         }
 
         private void handleOnWriteFailed(CharSequence error, int sequence) {
@@ -1015,7 +1015,7 @@
             mCancellation = null;
 
             // Done.
-            mDoneCallback.onDone();
+            mWriteDoneCallback.onDone();
         }
 
         private void handleOnWriteCanceled(int sequence) {
@@ -1033,7 +1033,7 @@
             mCancellation = null;
 
             // Done.
-            mDoneCallback.onDone();
+            mWriteDoneCallback.onDone();
         }
 
         private final class WriteHandler extends Handler {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java b/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
index 80c28e0..c3c118a 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
@@ -27,7 +27,6 @@
 import android.print.PrinterId;
 import android.print.PrinterInfo;
 import android.printservice.PrintServiceInfo;
-import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.AtomicFile;
@@ -52,6 +51,7 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 
 import libcore.io.IoUtils;
@@ -213,9 +213,9 @@
         mPrintersUpdatedBefore = true;
 
         // Some of the found printers may have be a printer that is in the
-        // history but with its name changed. Hence, we try to update the
-        // printer to use its current name instead of the historical one.
-        mPersistenceManager.updatePrintersHistoricalNamesIfNeeded(printers);
+        // history but with its properties changed. Hence, we try to update the
+        // printer to use its current properties instead of the historical one.
+        mPersistenceManager.updateHistoricalPrintersIfNeeded(printers);
 
         Map<PrinterId, PrinterInfo> printersMap = new LinkedHashMap<>();
         final int printerCount = printers.size();
@@ -340,7 +340,6 @@
 
         private static final String ATTR_NAME = "name";
         private static final String ATTR_DESCRIPTION = "description";
-        private static final String ATTR_STATUS = "status";
 
         private final AtomicFile mStatePersistFile;
 
@@ -378,13 +377,13 @@
             mReadTask.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, (Void[]) null);
         }
 
-        public void updatePrintersHistoricalNamesIfNeeded(List<PrinterInfo> printers) {
+        public void updateHistoricalPrintersIfNeeded(List<PrinterInfo> printers) {
             boolean writeHistory = false;
 
             final int printerCount = printers.size();
             for (int i = 0; i < printerCount; i++) {
                 PrinterInfo printer = printers.get(i);
-                writeHistory |= renamePrinterIfNeeded(printer);
+                writeHistory |= updateHistoricalPrinterIfNeeded(printer);
             }
 
             if (writeHistory) {
@@ -392,18 +391,42 @@
             }
         }
 
-        public boolean renamePrinterIfNeeded(PrinterInfo printer) {
-            boolean renamed = false;
+        /**
+         * Updates the historical printer state with the given printer.
+         *
+         * @param printer the printer to update
+         *
+         * @return true iff the historical printer list needs to be updated
+         */
+        public boolean updateHistoricalPrinterIfNeeded(PrinterInfo printer) {
+            boolean writeHistory = false;
             final int printerCount = mHistoricalPrinters.size();
             for (int i = 0; i < printerCount; i++) {
                 PrinterInfo historicalPrinter = mHistoricalPrinters.get(i);
-                if (historicalPrinter.getId().equals(printer.getId())
-                        && !TextUtils.equals(historicalPrinter.getName(), printer.getName())) {
-                    mHistoricalPrinters.set(i, printer);
-                    renamed = true;
+
+                if (!historicalPrinter.getId().equals(printer.getId())) {
+                    continue;
+                }
+
+                // Overwrite the historical printer with the updated printer as some properties
+                // changed. We ignore the status as this is a volatile state.
+                if (historicalPrinter.equalsIgnoringStatus(printer)) {
+                    continue;
+                }
+
+                mHistoricalPrinters.set(i, printer);
+
+                // We only persist limited information in the printer history, hence check if
+                // we need to persist the update.
+                // @see PersistenceManager.WriteTask#doWritePrinterHistory
+                if (!historicalPrinter.getName().equals(printer.getName())) {
+                    if (Objects.equals(historicalPrinter.getDescription(),
+                            printer.getDescription())) {
+                        writeHistory = true;
+                    }
                 }
             }
-            return renamed;
+            return writeHistory;
         }
 
         public void addPrinterAndWritePrinterHistory(PrinterInfo printer) {
@@ -610,7 +633,6 @@
 
                 String name = parser.getAttributeValue(null, ATTR_NAME);
                 String description = parser.getAttributeValue(null, ATTR_DESCRIPTION);
-                final int status = Integer.parseInt(parser.getAttributeValue(null, ATTR_STATUS));
 
                 parser.next();
 
@@ -625,7 +647,11 @@
                 expect(parser, XmlPullParser.END_TAG, TAG_PRINTER_ID);
                 parser.next();
 
-                PrinterInfo.Builder builder = new PrinterInfo.Builder(printerId, name, status);
+                // If the printer is available the printer will be replaced by the one read from the
+                // discovery session, hence the only time when this object is used is when the
+                // printer is unavailable.
+                PrinterInfo.Builder builder = new PrinterInfo.Builder(printerId, name,
+                        PrinterInfo.STATUS_UNAVAILABLE);
                 builder.setDescription(description);
                 PrinterInfo printer = builder.build();
 
@@ -642,7 +668,7 @@
             }
 
             private void expect(XmlPullParser parser, int type, String tag)
-                    throws IOException, XmlPullParserException {
+                    throws XmlPullParserException {
                 if (!accept(parser, type, tag)) {
                     throw new XmlPullParserException("Exepected event: " + type
                             + " and tag: " + tag + " but got event: " + parser.getEventType()
@@ -659,7 +685,7 @@
             }
 
             private boolean accept(XmlPullParser parser, int type, String tag)
-                    throws IOException, XmlPullParserException {
+                    throws XmlPullParserException {
                 if (parser.getEventType() != type) {
                     return false;
                 }
@@ -676,7 +702,8 @@
 
         private final class WriteTask extends AsyncTask<List<PrinterInfo>, Void, Void> {
             @Override
-            protected Void doInBackground(List<PrinterInfo>... printers) {
+            protected Void doInBackground(
+                    @SuppressWarnings("unchecked") List<PrinterInfo>... printers) {
                 doWritePrinterHistory(printers[0]);
                 return null;
             }
@@ -698,9 +725,6 @@
                         serializer.startTag(null, TAG_PRINTER);
 
                         serializer.attribute(null, ATTR_NAME, printer.getName());
-                        // Historical printers are always stored as unavailable.
-                        serializer.attribute(null, ATTR_STATUS, String.valueOf(
-                                PrinterInfo.STATUS_UNAVAILABLE));
                         String description = printer.getDescription();
                         if (description != null) {
                             serializer.attribute(null, ATTR_DESCRIPTION, description);
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
index 2757b81..606f4eb 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
@@ -52,7 +52,7 @@
 /**
  * This class represents the adapter for the pages in the print preview list.
  */
-public final class PageAdapter extends Adapter {
+public final class PageAdapter extends Adapter<ViewHolder> {
     private static final String LOG_TAG = "PageAdapter";
 
     private static final int MAX_PREVIEW_PAGES_BATCH = 50;
@@ -409,7 +409,7 @@
                 - horizontalPaddingAndMargins) / columnCount) + 0.5f);
 
         // Compute max page height.
-        final int pageContentDesiredHeight = (int) (((float) pageContentDesiredWidth
+        final int pageContentDesiredHeight = (int) ((pageContentDesiredWidth
                 / pageAspectRatio) + 0.5f);
 
         // If the page does not fit entirely in a vertical direction,
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index 6521565..9c1cf64 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -30,7 +30,6 @@
 import android.content.ServiceConnection;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
-import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
@@ -462,6 +461,7 @@
         }
     }
 
+    @Override
     public void onUpdateCanceled() {
         if (DEBUG) {
             Log.i(LOG_TAG, "onUpdateCanceled()");
@@ -1738,8 +1738,9 @@
     }
 
     private void updatePageRangeOptions(int pageCount) {
+        @SuppressWarnings("unchecked")
         ArrayAdapter<SpinnerItem<Integer>> rangeOptionsSpinnerAdapter =
-                (ArrayAdapter) mRangeOptionsSpinner.getAdapter();
+                (ArrayAdapter<SpinnerItem<Integer>>) mRangeOptionsSpinner.getAdapter();
         rangeOptionsSpinnerAdapter.clear();
 
         final int[] rangeOptionsValues = getResources().getIntArray(
@@ -1928,6 +1929,7 @@
             this.label = label;
         }
 
+        @Override
         public String toString() {
             return label.toString();
         }
@@ -2187,7 +2189,7 @@
                 if (position == 0 && getPdfPrinter() != null) {
                     PrinterHolder printerHolder = (PrinterHolder) getItem(position);
                     title = printerHolder.printer.getName();
-                    icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf);
+                    icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf, null);
                 } else if (position == 1) {
                     title = getString(R.string.all_printers);
                 }
@@ -2195,20 +2197,16 @@
                 if (position == 1 && getPdfPrinter() != null) {
                     PrinterHolder printerHolder = (PrinterHolder) getItem(position);
                     title = printerHolder.printer.getName();
-                    icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf);
+                    icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf, null);
                 } else if (position == getCount() - 1) {
                     title = getString(R.string.all_printers);
                 } else {
                     PrinterHolder printerHolder = (PrinterHolder) getItem(position);
-                    title = printerHolder.printer.getName();
-                    try {
-                        PackageInfo packageInfo = getPackageManager().getPackageInfo(
-                                printerHolder.printer.getId().getServiceName().getPackageName(), 0);
-                        subtitle = packageInfo.applicationInfo.loadLabel(getPackageManager());
-                        icon = packageInfo.applicationInfo.loadIcon(getPackageManager());
-                    } catch (NameNotFoundException nnfe) {
-                        /* ignore */
-                    }
+                    PrinterInfo printInfo = printerHolder.printer;
+
+                    title = printInfo.getName();
+                    icon = printInfo.loadIcon(PrintActivity.this);
+                    subtitle = printInfo.getDescription();
                 }
             }
 
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintPreviewController.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintPreviewController.java
index 8716fd2..ce54204 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintPreviewController.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintPreviewController.java
@@ -78,8 +78,8 @@
         mRecyclerView.setLayoutManager(mLayoutManger);
         mRecyclerView.setAdapter(mPageAdapter);
         mRecyclerView.setItemViewCacheSize(0);
-        mPreloadController = new PreloadController(mRecyclerView);
-        mRecyclerView.setOnScrollListener(mPreloadController);
+        mPreloadController = new PreloadController();
+        mRecyclerView.addOnScrollListener(mPreloadController);
 
         mContentView = (PrintContentView) activity.findViewById(R.id.options_content);
         mEmbeddedContentContainer = (EmbeddedContentContainer) activity.findViewById(
@@ -314,12 +314,9 @@
     }
 
     private final class PreloadController extends RecyclerView.OnScrollListener {
-        private final RecyclerView mRecyclerView;
-
         private int mOldScrollState;
 
-        public PreloadController(RecyclerView recyclerView) {
-            mRecyclerView = recyclerView;
+        public PreloadController() {
             mOldScrollState = mRecyclerView.getScrollState();
         }
 
@@ -371,7 +368,8 @@
                 View lastChild = layoutManager.getChildAt(layoutManager.getChildCount() - 1);
                 ViewHolder lastHolder = mRecyclerView.getChildViewHolder(lastChild);
 
-                return new PageRange(firstHolder.getPosition(), lastHolder.getPosition());
+                return new PageRange(firstHolder.getLayoutPosition(),
+                        lastHolder.getLayoutPosition());
             }
             return null;
         }
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
index ab0b2f1..cdfc7ee 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
@@ -27,6 +27,7 @@
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.IntentSender.SendIntentException;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
@@ -51,6 +52,7 @@
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityManager;
 import android.widget.AdapterView;
@@ -587,20 +589,31 @@
 
             convertView.setEnabled(isActionable(position));
 
-            PrinterInfo printer = (PrinterInfo) getItem(position);
+            final PrinterInfo printer = (PrinterInfo) getItem(position);
 
             CharSequence title = printer.getName();
-            CharSequence subtitle = null;
-            Drawable icon = null;
+            Drawable icon = printer.loadIcon(SelectPrinterActivity.this);
 
+            CharSequence printServiceLabel;
             try {
-                PackageManager pm = getPackageManager();
-                PackageInfo packageInfo = pm.getPackageInfo(printer.getId()
-                        .getServiceName().getPackageName(), 0);
-                subtitle = packageInfo.applicationInfo.loadLabel(pm);
-                icon = packageInfo.applicationInfo.loadIcon(pm);
-            } catch (NameNotFoundException nnfe) {
-                /* ignore */
+                PackageInfo packageInfo = getPackageManager().getPackageInfo(
+                        printer.getId().getServiceName().getPackageName(), 0);
+
+                printServiceLabel = packageInfo.applicationInfo.loadLabel(getPackageManager());
+            } catch (NameNotFoundException e) {
+                printServiceLabel = null;
+            }
+
+            CharSequence description = printer.getDescription();
+
+            CharSequence subtitle;
+            if (printServiceLabel == null) {
+                subtitle = description;
+            } else if (description == null) {
+                subtitle = printServiceLabel;
+            } else {
+                subtitle = getString(R.string.printer_extended_description_template,
+                        printServiceLabel, description);
             }
 
             TextView titleView = (TextView) convertView.findViewById(R.id.title);
@@ -615,6 +628,20 @@
                 subtitleView.setVisibility(View.GONE);
             }
 
+            ImageView moreInfoView = (ImageView) convertView.findViewById(R.id.more_info);
+            if (printer.getInfoIntent() != null) {
+                moreInfoView.setVisibility(View.VISIBLE);
+                moreInfoView.setOnClickListener(new OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        try {
+                            startIntentSender(printer.getInfoIntent().getIntentSender(), null, 0, 0, 0);
+                        } catch (SendIntentException e) {
+                            Log.e(LOG_TAG, "Could not execute pending info intent: %s", e);
+                        }
+                    }
+                });
+            }
 
             ImageView iconView = (ImageView) convertView.findViewById(R.id.icon);
             if (icon != null) {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/widget/PrintContentView.java b/packages/PrintSpooler/src/com/android/printspooler/widget/PrintContentView.java
index e6613fa..0bb4bfa 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/widget/PrintContentView.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/widget/PrintContentView.java
@@ -415,6 +415,7 @@
             onDragProgress(progress);
         }
 
+        @Override
         public void onViewReleased(View child, float velocityX, float velocityY) {
             final int childTop = child.getTop();
 
@@ -435,14 +436,17 @@
             invalidate();
         }
 
+        @Override
         public int getOrderedChildIndex(int index) {
             return getChildCount() - index - 1;
         }
 
+        @Override
         public int getViewVerticalDragRange(View child) {
             return mDraggableContent.getHeight();
         }
 
+        @Override
         public int clampViewPositionVertical(View child, int top, int dy) {
             final int staticOptionBottom = mStaticContent.getBottom();
             return Math.max(Math.min(top, getOpenedOptionsY()), getClosedOptionsY());
diff --git a/packages/SystemUI/src/com/android/systemui/keyboard/KeyboardUI.java b/packages/SystemUI/src/com/android/systemui/keyboard/KeyboardUI.java
index d931856..481b9180 100644
--- a/packages/SystemUI/src/com/android/systemui/keyboard/KeyboardUI.java
+++ b/packages/SystemUI/src/com/android/systemui/keyboard/KeyboardUI.java
@@ -70,17 +70,19 @@
     // time for us to receive the signal that it's starting.
     private static final long BLUETOOTH_START_DELAY_MILLIS = 10 * 1000;
 
+    // We will be scanning up to 30 seconds, after which we'll stop.
+    private static final long BLUETOOTH_SCAN_TIMEOUT_MILLIS = 30 * 1000;
+
     private static final int STATE_NOT_ENABLED = -1;
     private static final int STATE_UNKNOWN = 0;
     private static final int STATE_WAITING_FOR_BOOT_COMPLETED = 1;
     private static final int STATE_WAITING_FOR_TABLET_MODE_EXIT = 2;
     private static final int STATE_WAITING_FOR_DEVICE_DISCOVERY = 3;
     private static final int STATE_WAITING_FOR_BLUETOOTH = 4;
-    private static final int STATE_WAITING_FOR_STATE_PAIRED = 5;
-    private static final int STATE_PAIRING = 6;
-    private static final int STATE_PAIRED = 7;
-    private static final int STATE_USER_CANCELLED = 8;
-    private static final int STATE_DEVICE_NOT_FOUND = 9;
+    private static final int STATE_PAIRING = 5;
+    private static final int STATE_PAIRED = 6;
+    private static final int STATE_USER_CANCELLED = 7;
+    private static final int STATE_DEVICE_NOT_FOUND = 8;
 
     private static final int MSG_INIT = 0;
     private static final int MSG_ON_BOOT_COMPLETED = 1;
@@ -92,6 +94,7 @@
     private static final int MSG_ON_BLE_SCAN_FAILED = 7;
     private static final int MSG_SHOW_BLUETOOTH_DIALOG = 8;
     private static final int MSG_DISMISS_BLUETOOTH_DIALOG = 9;
+    private static final int MSG_BLE_ABORT_SCAN = 10;
 
     private volatile KeyboardHandler mHandler;
     private volatile KeyboardUIHandler mUIHandler;
@@ -107,6 +110,7 @@
     private long mBootCompletedTime;
 
     private int mInTabletMode = InputManager.SWITCH_STATE_UNKNOWN;
+    private int mScanAttempt = 0;
     private ScanCallback mScanCallback;
     private BluetoothDialog mDialog;
 
@@ -328,6 +332,9 @@
             .build();
         mScanCallback = new KeyboardScanCallback();
         scanner.startScan(Arrays.asList(filter), settings, mScanCallback);
+
+        Message abortMsg = mHandler.obtainMessage(MSG_BLE_ABORT_SCAN, ++mScanAttempt, 0);
+        mHandler.sendMessageDelayed(abortMsg, BLUETOOTH_SCAN_TIMEOUT_MILLIS);
     }
 
     private void stopScanning() {
@@ -338,6 +345,19 @@
     }
 
     // Should only be called on the handler thread
+    private void bleAbortScanInternal(int scanAttempt) {
+        if (mState == STATE_WAITING_FOR_DEVICE_DISCOVERY && scanAttempt == mScanAttempt) {
+            if (DEBUG) {
+                Slog.d(TAG, "Bluetooth scan timed out");
+            }
+            stopScanning();
+            // FIXME: should we also try shutting off bluetooth if we enabled
+            // it in the first place?
+            mState = STATE_DEVICE_NOT_FOUND;
+        }
+    }
+
+    // Should only be called on the handler thread
     private void onDeviceAddedInternal(CachedBluetoothDevice d) {
         if (mState == STATE_WAITING_FOR_DEVICE_DISCOVERY && d.getName().equals(mKeyboardName)) {
             stopScanning();
@@ -425,6 +445,12 @@
                     } else {
                         mState = STATE_USER_CANCELLED;
                     }
+                    break;
+                }
+                case MSG_BLE_ABORT_SCAN: {
+                    int scanAttempt = msg.arg1;
+                    bleAbortScanInternal(scanAttempt);
+                    break;
                 }
                 case MSG_ON_BLUETOOTH_STATE_CHANGED: {
                     int bluetoothState = msg.arg1;
@@ -555,8 +581,6 @@
                 return "STATE_WAITING_FOR_DEVICE_DISCOVERY";
             case STATE_WAITING_FOR_BLUETOOTH:
                 return "STATE_WAITING_FOR_BLUETOOTH";
-            case STATE_WAITING_FOR_STATE_PAIRED:
-                return "STATE_WAITING_FOR_STATE_PAIRED";
             case STATE_PAIRING:
                 return "STATE_PAIRING";
             case STATE_PAIRED:
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 552db7d..3e8dc4e 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -8230,6 +8230,18 @@
         }
     }
 
+    @Override
+    public IBinder getUriPermissionOwnerForActivity(IBinder activityToken) {
+        enforceNotIsolatedCaller("getUriPermissionOwnerForActivity");
+        synchronized(this) {
+            ActivityRecord r = ActivityRecord.isInStackLocked(activityToken);
+            if (r == null) {
+                throw new IllegalArgumentException("Activity does not exist; token="
+                        + activityToken);
+            }
+            return r.getUriPermissionsLocked().getExternalTokenLocked();
+        }
+    }
     /**
      * @param uri This uri must NOT contain an embedded userId.
      * @param sourceUserId The userId in which the uri is to be resolved.
diff --git a/services/core/java/com/android/server/wm/DropPermissionsHandler.java b/services/core/java/com/android/server/wm/DropPermissionsHandler.java
index 2ac1ef4..68cfaab 100644
--- a/services/core/java/com/android/server/wm/DropPermissionsHandler.java
+++ b/services/core/java/com/android/server/wm/DropPermissionsHandler.java
@@ -37,7 +37,7 @@
 
     private final ArrayList<Uri> mUris = new ArrayList<Uri>();
 
-    private IBinder mPermissionOwner = null;
+    private IBinder mActivityToken = null;
 
     DropPermissionsHandler(ClipData clipData, int sourceUid, String targetPackage, int mode,
             int sourceUserId, int targetUserId) {
@@ -51,18 +51,21 @@
     }
 
     @Override
-    public void take() throws RemoteException {
-        if (mPermissionOwner != null) {
+    public void take(IBinder activityToken) throws RemoteException {
+        if (mActivityToken != null) {
             return;
         }
+        mActivityToken = activityToken;
 
-        mPermissionOwner = ActivityManagerNative.getDefault().newUriPermissionOwner("drop");
+        // Will throw if Activity is not found.
+        IBinder permissionOwner = ActivityManagerNative.getDefault().
+                getUriPermissionOwnerForActivity(mActivityToken);
 
         long origId = Binder.clearCallingIdentity();
         try {
             for (int i = 0; i < mUris.size(); i++) {
                 ActivityManagerNative.getDefault().grantUriPermissionFromOwner(
-                        mPermissionOwner, mSourceUid, mTargetPackage, mUris.get(i), mMode,
+                        permissionOwner, mSourceUid, mTargetPackage, mUris.get(i), mMode,
                         mSourceUserId, mTargetUserId);
             }
         } finally {
@@ -72,15 +75,24 @@
 
     @Override
     public void release() throws RemoteException {
-        if (mPermissionOwner == null) {
+        if (mActivityToken == null) {
             return;
         }
 
+        IBinder permissionOwner = null;
+        try {
+            permissionOwner = ActivityManagerNative.getDefault().
+                    getUriPermissionOwnerForActivity(mActivityToken);
+        } catch (Exception e) {
+            // Activity is destroyed, permissions already revoked.
+            return;
+        } finally {
+            mActivityToken = null;
+        }
+
         for (int i = 0; i < mUris.size(); ++i) {
             ActivityManagerNative.getDefault().revokeUriPermissionFromOwner(
-                    mPermissionOwner, mUris.get(i), mMode, mSourceUserId);
+                    permissionOwner, mUris.get(i), mMode, mSourceUserId);
         }
-
-        mPermissionOwner = null;
     }
 }
diff --git a/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java b/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
index af109d4..98033f6 100644
--- a/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
+++ b/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
@@ -20,6 +20,7 @@
 import android.graphics.Region;
 import android.view.DisplayInfo;
 import android.view.GestureDetector;
+import android.view.InputDevice;
 import android.view.MotionEvent;
 import android.view.WindowManagerPolicy.PointerEventListener;
 
@@ -108,7 +109,8 @@
                 final int x = (int) motionEvent.getX();
                 final int y = (int) motionEvent.getY();
                 final Task task = mDisplayContent.findTaskForControlPoint(x, y);
-                if (task == null) {
+                InputDevice inputDevice = motionEvent.getDevice();
+                if (task == null || inputDevice == null) {
                     mPointerIconShape = STYLE_NOT_SPECIFIED;
                     break;
                 }
@@ -130,7 +132,7 @@
                     }
                     if (mPointerIconShape != iconShape) {
                         mPointerIconShape = iconShape;
-                        motionEvent.getDevice().setPointerShape(iconShape);
+                        inputDevice.setPointerShape(iconShape);
                     }
                 } else {
                     mPointerIconShape = STYLE_NOT_SPECIFIED;
@@ -139,7 +141,10 @@
 
             case MotionEvent.ACTION_HOVER_EXIT:
                 mPointerIconShape = STYLE_NOT_SPECIFIED;
-                motionEvent.getDevice().setPointerShape(STYLE_DEFAULT);
+                InputDevice inputDevice = motionEvent.getDevice();
+                if (inputDevice != null) {
+                    inputDevice.setPointerShape(STYLE_DEFAULT);
+                }
                 break;
 
             case MotionEvent.ACTION_UP:
diff --git a/services/print/java/com/android/server/print/PrintManagerService.java b/services/print/java/com/android/server/print/PrintManagerService.java
index f18617e..d5f384d 100644
--- a/services/print/java/com/android/server/print/PrintManagerService.java
+++ b/services/print/java/com/android/server/print/PrintManagerService.java
@@ -27,6 +27,7 @@
 import android.content.pm.ServiceInfo;
 import android.content.pm.UserInfo;
 import android.database.ContentObserver;
+import android.graphics.drawable.Icon;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Bundle;
@@ -177,6 +178,25 @@
         }
 
         @Override
+        public Icon getCustomPrinterIcon(PrinterId printerId, int userId) {
+            final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId);
+            final UserState userState;
+            synchronized (mLock) {
+                // Only the current group members can get the printer icons.
+                if (resolveCallingProfileParentLocked(resolvedUserId) != getCurrentUserId()) {
+                    return null;
+                }
+                userState = getOrCreateUserStateLocked(resolvedUserId);
+            }
+            final long identity = Binder.clearCallingIdentity();
+            try {
+                return userState.getCustomPrinterIcon(printerId);
+            } finally {
+                Binder.restoreCallingIdentity(identity);
+            }
+        }
+
+        @Override
         public void cancelPrintJob(PrintJobId printJobId, int appId, int userId) {
             final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId);
             final int resolvedAppId;
diff --git a/services/print/java/com/android/server/print/RemotePrintService.java b/services/print/java/com/android/server/print/RemotePrintService.java
index 77a47f8..0af1525 100644
--- a/services/print/java/com/android/server/print/RemotePrintService.java
+++ b/services/print/java/com/android/server/print/RemotePrintService.java
@@ -24,6 +24,7 @@
 import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.pm.ParceledListSlice;
+import android.graphics.drawable.Icon;
 import android.os.Binder;
 import android.os.Handler;
 import android.os.IBinder;
@@ -98,6 +99,15 @@
         public void onPrintersAdded(List<PrinterInfo> printers);
         public void onPrintersRemoved(List<PrinterId> printerIds);
         public void onServiceDied(RemotePrintService service);
+
+        /**
+         * Handle that a custom icon for a printer was loaded.
+         *
+         * @param printerId the id of the printer the icon belongs to
+         * @param icon the icon that was loaded
+         * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+         */
+        public void onCustomPrinterIconLoaded(PrinterId printerId, Icon icon);
     }
 
     public RemotePrintService(Context context, ComponentName componentName, int userId,
@@ -404,6 +414,22 @@
                 printerId).sendToTarget();
     }
 
+    /**
+     * Request the custom printer icon for a printer.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public void requestCustomPrinterIcon(PrinterId printerId) {
+        try {
+            if (isBound()) {
+                mPrintService.requestCustomPrinterIcon(printerId);
+            }
+        } catch (RemoteException re) {
+            Slog.e(LOG_TAG, "Error requesting icon for " + printerId, re);
+        }
+    }
+
     private void handleStartPrinterStateTracking(final PrinterId printerId) {
         throwIfDestroyed();
         // Take a note we are tracking the printer.
@@ -842,5 +868,19 @@
                 throw new IllegalArgumentException("Invalid printer id: " + printerId);
             }
         }
+
+        @Override
+        public void onCustomPrinterIconLoaded(PrinterId printerId, Icon icon)
+                throws RemoteException {
+            RemotePrintService service = mWeakService.get();
+            if (service != null) {
+                final long identity = Binder.clearCallingIdentity();
+                try {
+                    service.mCallbacks.onCustomPrinterIconLoaded(printerId, icon);
+                } finally {
+                    Binder.restoreCallingIdentity(identity);
+                }
+            }
+        }
     }
 }
diff --git a/services/print/java/com/android/server/print/RemotePrintSpooler.java b/services/print/java/com/android/server/print/RemotePrintSpooler.java
index c506b6f..40a8880 100644
--- a/services/print/java/com/android/server/print/RemotePrintSpooler.java
+++ b/services/print/java/com/android/server/print/RemotePrintSpooler.java
@@ -23,6 +23,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.ServiceConnection;
+import android.graphics.drawable.Icon;
 import android.os.Binder;
 import android.os.Build;
 import android.os.IBinder;
@@ -35,6 +36,7 @@
 import android.print.IPrintSpoolerClient;
 import android.print.PrintJobId;
 import android.print.PrintJobInfo;
+import android.print.PrinterId;
 import android.util.Slog;
 import android.util.TimedRemoteCaller;
 
@@ -72,6 +74,15 @@
 
     private final SetPrintJobTagCaller mSetPrintJobTagCaller = new SetPrintJobTagCaller();
 
+    private final OnCustomPrinterIconLoadedCaller mCustomPrinterIconLoadedCaller =
+            new OnCustomPrinterIconLoadedCaller();
+
+    private final ClearCustomPrinterIconCacheCaller mClearCustomPrinterIconCache =
+            new ClearCustomPrinterIconCacheCaller();
+
+    private final GetCustomPrinterIconCaller mGetCustomPrinterIconCaller =
+            new GetCustomPrinterIconCaller();
+
     private final ServiceConnection mServiceConnection = new MyServiceConnection();
 
     private final Context mContext;
@@ -287,6 +298,96 @@
         }
     }
 
+    /**
+     * Handle that a custom icon for a printer was loaded.
+     *
+     * @param printerId the id of the printer the icon belongs to
+     * @param icon the icon that was loaded
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public final void onCustomPrinterIconLoaded(@NonNull PrinterId printerId,
+            @Nullable Icon icon) {
+        throwIfCalledOnMainThread();
+        synchronized (mLock) {
+            throwIfDestroyedLocked();
+            mCanUnbind = false;
+        }
+        try {
+            mCustomPrinterIconLoadedCaller.onCustomPrinterIconLoaded(getRemoteInstanceLazy(),
+                    printerId, icon);
+        } catch (RemoteException|TimeoutException re) {
+            Slog.e(LOG_TAG, "Error loading new custom printer icon.", re);
+        } finally {
+            if (DEBUG) {
+                Slog.i(LOG_TAG,
+                        "[user: " + mUserHandle.getIdentifier() + "] onCustomPrinterIconLoaded()");
+            }
+            synchronized (mLock) {
+                mCanUnbind = true;
+                mLock.notifyAll();
+            }
+        }
+    }
+
+    /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @return the custom icon to be used for the printer or null if the icon is
+     *         not yet available
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public final @Nullable Icon getCustomPrinterIcon(@NonNull PrinterId printerId) {
+        throwIfCalledOnMainThread();
+        synchronized (mLock) {
+            throwIfDestroyedLocked();
+            mCanUnbind = false;
+        }
+        try {
+            return mGetCustomPrinterIconCaller.getCustomPrinterIcon(getRemoteInstanceLazy(),
+                    printerId);
+        } catch (RemoteException|TimeoutException re) {
+            Slog.e(LOG_TAG, "Error getting custom printer icon.", re);
+            return null;
+        } finally {
+            if (DEBUG) {
+                Slog.i(LOG_TAG,
+                        "[user: " + mUserHandle.getIdentifier() + "] getCustomPrinterIcon()");
+            }
+            synchronized (mLock) {
+                mCanUnbind = true;
+                mLock.notifyAll();
+            }
+        }
+    }
+
+    /**
+     * Clear the custom printer icon cache
+     */
+    public void clearCustomPrinterIconCache() {
+        throwIfCalledOnMainThread();
+        synchronized (mLock) {
+            throwIfDestroyedLocked();
+            mCanUnbind = false;
+        }
+        try {
+            mClearCustomPrinterIconCache.clearCustomPrinterIconCache(getRemoteInstanceLazy());
+        } catch (RemoteException|TimeoutException re) {
+            Slog.e(LOG_TAG, "Error clearing custom printer icon cache.", re);
+        } finally {
+            if (DEBUG) {
+                Slog.i(LOG_TAG,
+                        "[user: " + mUserHandle.getIdentifier()
+                                + "] clearCustomPrinterIconCache()");
+            }
+            synchronized (mLock) {
+                mCanUnbind = true;
+                mLock.notifyAll();
+            }
+        }
+    }
+
     public final boolean setPrintJobTag(PrintJobId printJobId, String tag) {
         throwIfCalledOnMainThread();
         synchronized (mLock) {
@@ -632,6 +733,69 @@
         }
     }
 
+    private static final class OnCustomPrinterIconLoadedCaller extends TimedRemoteCaller<Void> {
+        private final IPrintSpoolerCallbacks mCallback;
+
+        public OnCustomPrinterIconLoadedCaller() {
+            super(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS);
+            mCallback = new BasePrintSpoolerServiceCallbacks() {
+                @Override
+                public void onCustomPrinterIconCached(int sequence) {
+                    onRemoteMethodResult(null, sequence);
+                }
+            };
+        }
+
+        public Void onCustomPrinterIconLoaded(IPrintSpooler target, PrinterId printerId,
+                Icon icon) throws RemoteException, TimeoutException {
+            final int sequence = onBeforeRemoteCall();
+            target.onCustomPrinterIconLoaded(printerId, icon, mCallback, sequence);
+            return getResultTimed(sequence);
+        }
+    }
+
+    private static final class ClearCustomPrinterIconCacheCaller extends TimedRemoteCaller<Void> {
+        private final IPrintSpoolerCallbacks mCallback;
+
+        public ClearCustomPrinterIconCacheCaller() {
+            super(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS);
+            mCallback = new BasePrintSpoolerServiceCallbacks() {
+                @Override
+                public void customPrinterIconCacheCleared(int sequence) {
+                    onRemoteMethodResult(null, sequence);
+                }
+            };
+        }
+
+        public Void clearCustomPrinterIconCache(IPrintSpooler target)
+                throws RemoteException, TimeoutException {
+            final int sequence = onBeforeRemoteCall();
+            target.clearCustomPrinterIconCache(mCallback, sequence);
+            return getResultTimed(sequence);
+        }
+    }
+
+    private static final class GetCustomPrinterIconCaller extends TimedRemoteCaller<Icon> {
+        private final IPrintSpoolerCallbacks mCallback;
+
+        public GetCustomPrinterIconCaller() {
+            super(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS);
+            mCallback = new BasePrintSpoolerServiceCallbacks() {
+                @Override
+                public void onGetCustomPrinterIconResult(Icon icon, int sequence) {
+                    onRemoteMethodResult(icon, sequence);
+                }
+            };
+        }
+
+        public Icon getCustomPrinterIcon(IPrintSpooler target, PrinterId printerId)
+                throws RemoteException, TimeoutException {
+            final int sequence = onBeforeRemoteCall();
+            target.getCustomPrinterIcon(printerId, mCallback, sequence);
+            return getResultTimed(sequence);
+        }
+    }
+
     private static abstract class BasePrintSpoolerServiceCallbacks
             extends IPrintSpoolerCallbacks.Stub {
         @Override
@@ -658,6 +822,21 @@
         public void onSetPrintJobTagResult(boolean success, int sequence) {
             /* do nothing */
         }
+
+        @Override
+        public void onCustomPrinterIconCached(int sequence) {
+            /* do nothing */
+        }
+
+        @Override
+        public void onGetCustomPrinterIconResult(@Nullable Icon icon, int sequence) {
+            /* do nothing */
+        }
+
+        @Override
+        public void customPrinterIconCacheCleared(int sequence) {
+            /* do nothing */
+        }
     }
 
     private static final class PrintSpoolerClient extends IPrintSpoolerClient.Stub {
diff --git a/services/print/java/com/android/server/print/UserState.java b/services/print/java/com/android/server/print/UserState.java
index 6a50a6e..65d6ce2 100644
--- a/services/print/java/com/android/server/print/UserState.java
+++ b/services/print/java/com/android/server/print/UserState.java
@@ -26,6 +26,7 @@
 import android.content.pm.ParceledListSlice;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
+import android.graphics.drawable.Icon;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Binder;
@@ -271,6 +272,28 @@
         return printJob;
     }
 
+    /**
+     * Get the custom icon for a printer. If the icon is not cached, the icon is
+     * requested asynchronously. Once it is available the printer is updated.
+     *
+     * @param printerId the id of the printer the icon should be loaded for
+     * @return the custom icon to be used for the printer or null if the icon is
+     *         not yet available
+     * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+     */
+    public Icon getCustomPrinterIcon(PrinterId printerId) {
+        Icon icon = mSpooler.getCustomPrinterIcon(printerId);
+
+        if (icon == null) {
+            RemotePrintService service = mActiveServices.get(printerId.getServiceName());
+            if (service != null) {
+                service.requestCustomPrinterIcon(printerId);
+            }
+        }
+
+        return icon;
+    }
+
     public void cancelPrintJob(PrintJobId printJobId, int appId) {
         PrintJobInfo printJobInfo = mSpooler.getPrintJobInfo(printJobId, appId);
         if (printJobInfo == null) {
@@ -345,6 +368,8 @@
             throwIfDestroyedLocked();
 
             if (mPrinterDiscoverySession == null) {
+                mSpooler.clearCustomPrinterIconCache();
+
                 // If we do not have a session, tell all service to create one.
                 mPrinterDiscoverySession = new PrinterDiscoverySessionMediator(mContext) {
                     @Override
@@ -533,6 +558,20 @@
     }
 
     @Override
+    public void onCustomPrinterIconLoaded(PrinterId printerId, Icon icon) {
+        synchronized (mLock) {
+            throwIfDestroyedLocked();
+
+            // No session - nothing to do.
+            if (mPrinterDiscoverySession == null) {
+                return;
+            }
+            mSpooler.onCustomPrinterIconLoaded(printerId, icon);
+            mPrinterDiscoverySession.onCustomPrinterIconLoadedLocked(printerId);
+        }
+    }
+
+    @Override
     public void onServiceDied(RemotePrintService service) {
         synchronized (mLock) {
             throwIfDestroyedLocked();
@@ -1250,6 +1289,37 @@
             service.destroy();
         }
 
+        /**
+         * Handle that a custom icon for a printer was loaded.
+         *
+         * This increments the icon generation and adds the printer again which triggers an update
+         * in all users of the currently known printers.
+         *
+         * @param printerId the id of the printer the icon belongs to
+         * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
+         */
+        public void onCustomPrinterIconLoadedLocked(PrinterId printerId) {
+            if (DEBUG) {
+                Log.i(LOG_TAG, "onCustomPrinterIconLoadedLocked()");
+            }
+            if (mIsDestroyed) {
+                Log.w(LOG_TAG, "Not updating printer - session destroyed");
+                return;
+            }
+
+            PrinterInfo printer = mPrinters.get(printerId);
+            if (printer != null) {
+                PrinterInfo newPrinter = (new PrinterInfo.Builder(printer))
+                        .incCustomPrinterIconGen().build();
+                mPrinters.put(printerId, newPrinter);
+
+                ArrayList<PrinterInfo> addedPrinters = new ArrayList<>(1);
+                addedPrinters.add(newPrinter);
+                mHandler.obtainMessage(SessionHandler.MSG_DISPATCH_PRINTERS_ADDED,
+                        addedPrinters).sendToTarget();
+            }
+        }
+
         public void onServiceDiedLocked(RemotePrintService service) {
             // Remove the reported by that service.
             removePrintersForServiceLocked(service.getComponentName());
diff --git a/tools/aapt2/compile/XmlIdCollector_test.cpp b/tools/aapt2/compile/XmlIdCollector_test.cpp
index 45b7af2..a37ea86 100644
--- a/tools/aapt2/compile/XmlIdCollector_test.cpp
+++ b/tools/aapt2/compile/XmlIdCollector_test.cpp
@@ -37,13 +37,13 @@
     XmlIdCollector collector;
     ASSERT_TRUE(collector.consume(context.get(), doc.get()));
 
-    EXPECT_EQ(1u, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
+    EXPECT_EQ(1, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
                              SourcedResourceName{ test::parseNameOrDie(u"@id/foo"), 3u }));
 
-    EXPECT_EQ(1u, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
+    EXPECT_EQ(1, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
                              SourcedResourceName{ test::parseNameOrDie(u"@id/bar"), 3u }));
 
-    EXPECT_EQ(1u, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
+    EXPECT_EQ(1, std::count(doc->file.exportedSymbols.begin(), doc->file.exportedSymbols.end(),
                              SourcedResourceName{ test::parseNameOrDie(u"@id/car"), 6u }));
 }