diff --git a/api/current.txt b/api/current.txt
index c7dbd49..123d8cc 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -529,6 +529,7 @@
     field public static final int ellipsize = 16842923; // 0x10100ab
     field public static final int ems = 16843096; // 0x1010158
     field public static final int enabled = 16842766; // 0x101000e
+    field public static final int end = 16843997; // 0x10104dd
     field public static final int endColor = 16843166; // 0x101019e
     field public static final deprecated int endYear = 16843133; // 0x101017d
     field public static final int enterFadeDuration = 16843532; // 0x101030c
@@ -1128,6 +1129,7 @@
     field public static final int stackFromBottom = 16843005; // 0x10100fd
     field public static final int stackViewStyle = 16843838; // 0x101043e
     field public static final int starStyle = 16842882; // 0x1010082
+    field public static final int start = 16843996; // 0x10104dc
     field public static final int startColor = 16843165; // 0x101019d
     field public static final int startDelay = 16843746; // 0x10103e2
     field public static final int startOffset = 16843198; // 0x10101be
@@ -11946,6 +11948,9 @@
     method public android.graphics.drawable.Drawable findDrawableByLayerId(int);
     method public android.graphics.drawable.Drawable getDrawable(int);
     method public int getId(int);
+    method public int getLayerGravity(int);
+    method public int getLayerHeight(int);
+    method public int getLayerWidth(int);
     method public int getNumberOfLayers();
     method public int getOpacity();
     method public int getPaddingMode();
@@ -11955,7 +11960,10 @@
     method public void setColorFilter(android.graphics.ColorFilter);
     method public boolean setDrawableByLayerId(int, android.graphics.drawable.Drawable);
     method public void setId(int, int);
+    method public void setLayerGravity(int, int);
     method public void setLayerInset(int, int, int, int, int);
+    method public void setLayerInsetRelative(int, int, int, int, int);
+    method public void setLayerSize(int, int, int);
     method public void setOpacity(int);
     method public void setPaddingMode(int);
     method public void unscheduleDrawable(android.graphics.drawable.Drawable, java.lang.Runnable);
@@ -12696,11 +12704,14 @@
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Range<java.lang.Integer>[]> CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Range<java.lang.Integer>> CONTROL_AE_COMPENSATION_RANGE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Rational> CONTROL_AE_COMPENSATION_STEP;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Boolean> CONTROL_AE_LOCK_AVAILABLE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AF_AVAILABLE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_EFFECTS;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_SCENE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AWB_AVAILABLE_MODES;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Boolean> CONTROL_AWB_LOCK_AVAILABLE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AF;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AWB;
diff --git a/api/system-current.txt b/api/system-current.txt
index e1a236f..6224dfb 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -601,6 +601,7 @@
     field public static final int ellipsize = 16842923; // 0x10100ab
     field public static final int ems = 16843096; // 0x1010158
     field public static final int enabled = 16842766; // 0x101000e
+    field public static final int end = 16843997; // 0x10104dd
     field public static final int endColor = 16843166; // 0x101019e
     field public static final deprecated int endYear = 16843133; // 0x101017d
     field public static final int enterFadeDuration = 16843532; // 0x101030c
@@ -1204,6 +1205,7 @@
     field public static final int stackFromBottom = 16843005; // 0x10100fd
     field public static final int stackViewStyle = 16843838; // 0x101043e
     field public static final int starStyle = 16842882; // 0x1010082
+    field public static final int start = 16843996; // 0x10104dc
     field public static final int startColor = 16843165; // 0x101019d
     field public static final int startDelay = 16843746; // 0x10103e2
     field public static final int startOffset = 16843198; // 0x10101be
@@ -12214,6 +12216,9 @@
     method public android.graphics.drawable.Drawable findDrawableByLayerId(int);
     method public android.graphics.drawable.Drawable getDrawable(int);
     method public int getId(int);
+    method public int getLayerGravity(int);
+    method public int getLayerHeight(int);
+    method public int getLayerWidth(int);
     method public int getNumberOfLayers();
     method public int getOpacity();
     method public int getPaddingMode();
@@ -12223,7 +12228,10 @@
     method public void setColorFilter(android.graphics.ColorFilter);
     method public boolean setDrawableByLayerId(int, android.graphics.drawable.Drawable);
     method public void setId(int, int);
+    method public void setLayerGravity(int, int);
     method public void setLayerInset(int, int, int, int, int);
+    method public void setLayerInsetRelative(int, int, int, int, int);
+    method public void setLayerSize(int, int, int);
     method public void setOpacity(int);
     method public void setPaddingMode(int);
     method public void unscheduleDrawable(android.graphics.drawable.Drawable, java.lang.Runnable);
@@ -12964,11 +12972,14 @@
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Range<java.lang.Integer>[]> CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Range<java.lang.Integer>> CONTROL_AE_COMPENSATION_RANGE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Rational> CONTROL_AE_COMPENSATION_STEP;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Boolean> CONTROL_AE_LOCK_AVAILABLE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AF_AVAILABLE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_EFFECTS;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_SCENE_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> CONTROL_AWB_AVAILABLE_MODES;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Boolean> CONTROL_AWB_LOCK_AVAILABLE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AF;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> CONTROL_MAX_REGIONS_AWB;
diff --git a/core/java/android/hardware/camera2/CameraCharacteristics.java b/core/java/android/hardware/camera2/CameraCharacteristics.java
index 5310071..16bc6a4 100644
--- a/core/java/android/hardware/camera2/CameraCharacteristics.java
+++ b/core/java/android/hardware/camera2/CameraCharacteristics.java
@@ -422,6 +422,17 @@
             new Key<Rational>("android.control.aeCompensationStep", Rational.class);
 
     /**
+     * <p>Whether the camera device supports {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</p>
+     * <p>LIMITED or FULL devices will always list <code>true</code></p>
+     * <p>This key is available on all devices.</p>
+     *
+     * @see CaptureRequest#CONTROL_AE_LOCK
+     */
+    @PublicKey
+    public static final Key<Boolean> CONTROL_AE_LOCK_AVAILABLE =
+            new Key<Boolean>("android.control.aeLockAvailable", boolean.class);
+
+    /**
      * <p>List of auto-focus (AF) modes for {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} that are
      * supported by this camera device.</p>
      * <p>Not all the auto-focus modes may be supported by a
@@ -469,6 +480,22 @@
             new Key<int[]>("android.control.availableEffects", int[].class);
 
     /**
+     * <p>List of control modes for {@link CaptureRequest#CONTROL_MODE android.control.mode} that are supported by this camera
+     * device.</p>
+     * <p>This list contains control modes that can be set for the camera device.
+     * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
+     * devices will always support OFF, AUTO modes.</p>
+     * <p><b>Range of valid values:</b><br>
+     * Any value listed in {@link CaptureRequest#CONTROL_MODE android.control.mode}</p>
+     * <p>This key is available on all devices.</p>
+     *
+     * @see CaptureRequest#CONTROL_MODE
+     */
+    @PublicKey
+    public static final Key<int[]> CONTROL_AVAILABLE_MODES =
+            new Key<int[]>("android.control.availableModes", int[].class);
+
+    /**
      * <p>List of scene modes for {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} that are supported by this camera
      * device.</p>
      * <p>This list contains scene modes that can be set for the camera device.
@@ -530,6 +557,17 @@
             new Key<int[]>("android.control.awbAvailableModes", int[].class);
 
     /**
+     * <p>Whether the camera device supports {@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</p>
+     * <p>LIMITED or FULL devices will always list <code>true</code></p>
+     * <p>This key is available on all devices.</p>
+     *
+     * @see CaptureRequest#CONTROL_AWB_LOCK
+     */
+    @PublicKey
+    public static final Key<Boolean> CONTROL_AWB_LOCK_AVAILABLE =
+            new Key<Boolean>("android.control.awbLockAvailable", boolean.class);
+
+    /**
      * <p>List of the maximum number of regions that can be used for metering in
      * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
      * this corresponds to the the maximum number of elements in
diff --git a/core/java/android/hardware/camera2/CaptureRequest.java b/core/java/android/hardware/camera2/CaptureRequest.java
index fb37ae5..e1b14cc 100644
--- a/core/java/android/hardware/camera2/CaptureRequest.java
+++ b/core/java/android/hardware/camera2/CaptureRequest.java
@@ -552,6 +552,8 @@
      * in this matrix result metadata. The transform should keep the magnitude
      * of the output color values within <code>[0, 1.0]</code> (assuming input color
      * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
+     * <p>The valid range of each matrix element varies on different devices, but
+     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
      * <p><b>Units</b>: Unitless scale factors</p>
      * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
      * <p><b>Full capability</b> -
@@ -575,6 +577,10 @@
      * TRANSFORM_MATRIX.</p>
      * <p>The gains in the result metadata are the gains actually
      * applied by the camera device to the current frame.</p>
+     * <p>The valid range of gains varies on different devices, but gains
+     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
+     * device allows gains below 1.0, this is usually not recommended because
+     * this can create color artifacts.</p>
      * <p><b>Units</b>: Unitless gain factors</p>
      * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
      * <p><b>Full capability</b> -
@@ -1239,10 +1245,6 @@
      * update, as if this frame is never captured. This mode can be used in the scenario
      * where the application doesn't want a 3A manual control capture to affect
      * the subsequent auto 3A capture results.</p>
-     * <p>LEGACY mode devices will only support AUTO and USE_SCENE_MODE modes.
-     * LIMITED mode devices will only support OFF and OFF_KEEP_STATE if they
-     * support the MANUAL_SENSOR and MANUAL_POST_PROCSESING capabilities.
-     * FULL mode devices will always support OFF and OFF_KEEP_STATE.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #CONTROL_MODE_OFF OFF}</li>
@@ -1250,9 +1252,12 @@
      *   <li>{@link #CONTROL_MODE_USE_SCENE_MODE USE_SCENE_MODE}</li>
      *   <li>{@link #CONTROL_MODE_OFF_KEEP_STATE OFF_KEEP_STATE}</li>
      * </ul></p>
+     * <p><b>Available values for this device:</b><br>
+     * {@link CameraCharacteristics#CONTROL_AVAILABLE_MODES android.control.availableModes}</p>
      * <p>This key is available on all devices.</p>
      *
      * @see CaptureRequest#CONTROL_AF_MODE
+     * @see CameraCharacteristics#CONTROL_AVAILABLE_MODES
      * @see #CONTROL_MODE_OFF
      * @see #CONTROL_MODE_AUTO
      * @see #CONTROL_MODE_USE_SCENE_MODE
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index 5642f6f..5bf5b29 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -403,6 +403,8 @@
      * in this matrix result metadata. The transform should keep the magnitude
      * of the output color values within <code>[0, 1.0]</code> (assuming input color
      * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
+     * <p>The valid range of each matrix element varies on different devices, but
+     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
      * <p><b>Units</b>: Unitless scale factors</p>
      * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
      * <p><b>Full capability</b> -
@@ -426,6 +428,10 @@
      * TRANSFORM_MATRIX.</p>
      * <p>The gains in the result metadata are the gains actually
      * applied by the camera device to the current frame.</p>
+     * <p>The valid range of gains varies on different devices, but gains
+     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
+     * device allows gains below 1.0, this is usually not recommended because
+     * this can create color artifacts.</p>
      * <p><b>Units</b>: Unitless gain factors</p>
      * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
      * <p><b>Full capability</b> -
@@ -1855,10 +1861,6 @@
      * update, as if this frame is never captured. This mode can be used in the scenario
      * where the application doesn't want a 3A manual control capture to affect
      * the subsequent auto 3A capture results.</p>
-     * <p>LEGACY mode devices will only support AUTO and USE_SCENE_MODE modes.
-     * LIMITED mode devices will only support OFF and OFF_KEEP_STATE if they
-     * support the MANUAL_SENSOR and MANUAL_POST_PROCSESING capabilities.
-     * FULL mode devices will always support OFF and OFF_KEEP_STATE.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #CONTROL_MODE_OFF OFF}</li>
@@ -1866,9 +1868,12 @@
      *   <li>{@link #CONTROL_MODE_USE_SCENE_MODE USE_SCENE_MODE}</li>
      *   <li>{@link #CONTROL_MODE_OFF_KEEP_STATE OFF_KEEP_STATE}</li>
      * </ul></p>
+     * <p><b>Available values for this device:</b><br>
+     * {@link CameraCharacteristics#CONTROL_AVAILABLE_MODES android.control.availableModes}</p>
      * <p>This key is available on all devices.</p>
      *
      * @see CaptureRequest#CONTROL_AF_MODE
+     * @see CameraCharacteristics#CONTROL_AVAILABLE_MODES
      * @see #CONTROL_MODE_OFF
      * @see #CONTROL_MODE_AUTO
      * @see #CONTROL_MODE_USE_SCENE_MODE
diff --git a/core/java/android/hardware/camera2/DngCreator.java b/core/java/android/hardware/camera2/DngCreator.java
index 6fc99ac..33d539c2 100644
--- a/core/java/android/hardware/camera2/DngCreator.java
+++ b/core/java/android/hardware/camera2/DngCreator.java
@@ -530,9 +530,9 @@
         int uPixStride = uPlane.getPixelStride();
 
         byte[] yuvPixel = { 0, 0, 0 };
-        byte[] yFullRow = new byte[yPixStride * width];
-        byte[] uFullRow = new byte[uPixStride * width / 2];
-        byte[] vFullRow = new byte[vPixStride * width / 2];
+        byte[] yFullRow = new byte[yPixStride * (width - 1) + 1];
+        byte[] uFullRow = new byte[uPixStride * (width / 2 - 1) + 1];
+        byte[] vFullRow = new byte[vPixStride * (width / 2 - 1) + 1];
         byte[] finalRow = new byte[BYTES_PER_RGB_PIX * width];
         for (int i = 0; i < height; i++) {
             int halfH = i / 2;
diff --git a/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java b/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
index 347db05..802b938 100644
--- a/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
+++ b/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
@@ -474,6 +474,15 @@
 
             m.set(CONTROL_AE_COMPENSATION_STEP, ParamsUtils.createRational(step));
         }
+
+        /*
+         * control.aeLockAvailable
+         */
+        {
+            boolean aeLockAvailable = p.isAutoExposureLockSupported();
+
+            m.set(CONTROL_AE_LOCK_AVAILABLE, aeLockAvailable);
+        }
     }
 
 
@@ -571,6 +580,16 @@
                 Log.v(TAG, "mapControlAwb - control.awbAvailableModes set to " +
                         ListUtils.listToString(awbAvail));
             }
+
+
+            /*
+             * control.awbLockAvailable
+             */
+            {
+                boolean awbLockAvailable = p.isAutoWhiteBalanceLockSupported();
+
+                m.set(CONTROL_AWB_LOCK_AVAILABLE, awbLockAvailable);
+            }
         }
     }
 
@@ -618,17 +637,44 @@
         /*
          * android.control.availableSceneModes
          */
+        int maxNumDetectedFaces = p.getMaxNumDetectedFaces();
         List<String> sceneModes = p.getSupportedSceneModes();
         List<Integer> supportedSceneModes =
                 ArrayUtils.convertStringListToIntList(sceneModes, sLegacySceneModes, sSceneModes);
-        if (supportedSceneModes == null) { // camera1 doesn't support scene mode settings
-            supportedSceneModes = new ArrayList<Integer>();
-            supportedSceneModes.add(CONTROL_SCENE_MODE_DISABLED); // disabled is always available
+
+        // Special case where the only scene mode listed is AUTO => no scene mode
+        if (sceneModes != null && sceneModes.size() == 1 &&
+                sceneModes.get(0) == Parameters.SCENE_MODE_AUTO) {
+            supportedSceneModes = null;
         }
-        if (p.getMaxNumDetectedFaces() > 0) { // always supports FACE_PRIORITY when face detecting
-            supportedSceneModes.add(CONTROL_SCENE_MODE_FACE_PRIORITY);
+
+        boolean sceneModeSupported = true;
+        if (supportedSceneModes == null && maxNumDetectedFaces == 0) {
+            sceneModeSupported = false;
         }
-        m.set(CONTROL_AVAILABLE_SCENE_MODES, ArrayUtils.toIntArray(supportedSceneModes));
+
+        if (sceneModeSupported) {
+            if (supportedSceneModes == null) {
+                supportedSceneModes = new ArrayList<Integer>();
+            }
+            if (maxNumDetectedFaces > 0) { // always supports FACE_PRIORITY when face detecting
+                supportedSceneModes.add(CONTROL_SCENE_MODE_FACE_PRIORITY);
+            }
+            // Remove all DISABLED occurrences
+            if (supportedSceneModes.contains(CONTROL_SCENE_MODE_DISABLED)) {
+                while(supportedSceneModes.remove(new Integer(CONTROL_SCENE_MODE_DISABLED))) {}
+            }
+            m.set(CONTROL_AVAILABLE_SCENE_MODES, ArrayUtils.toIntArray(supportedSceneModes));
+        } else {
+            m.set(CONTROL_AVAILABLE_SCENE_MODES, new int[] {CONTROL_SCENE_MODE_DISABLED});
+        }
+
+        /*
+         * android.control.availableModes
+         */
+        m.set(CONTROL_AVAILABLE_MODES, sceneModeSupported ?
+                new int[] { CONTROL_MODE_AUTO, CONTROL_MODE_USE_SCENE_MODE } :
+                new int[] { CONTROL_MODE_AUTO });
     }
 
     private static void mapLens(CameraMetadataNative m, Camera.Parameters p) {
diff --git a/core/java/android/net/Uri.java b/core/java/android/net/Uri.java
index 2099c3f..bf3d9aa 100644
--- a/core/java/android/net/Uri.java
+++ b/core/java/android/net/Uri.java
@@ -366,6 +366,7 @@
     public String toSafeString() {
         String scheme = getScheme();
         String ssp = getSchemeSpecificPart();
+        String authority = null;
         if (scheme != null) {
             if (scheme.equalsIgnoreCase("tel") || scheme.equalsIgnoreCase("sip")
                     || scheme.equalsIgnoreCase("sms") || scheme.equalsIgnoreCase("smsto")
@@ -384,6 +385,9 @@
                     }
                 }
                 return builder.toString();
+            } else if (scheme.equalsIgnoreCase("http") || scheme.equalsIgnoreCase("https")) {
+                ssp = null;
+                authority = "//" + getAuthority() + "/...";
             }
         }
         // Not a sensitive scheme, but let's still be conservative about
@@ -397,6 +401,9 @@
         if (ssp != null) {
             builder.append(ssp);
         }
+        if (authority != null) {
+            builder.append(authority);
+        }
         return builder.toString();
     }
 
@@ -1742,7 +1749,7 @@
      *
      * @return normalized Uri (never null)
      * @see {@link android.content.Intent#setData}
-     * @see {@link #setNormalizedData}
+     * @see {@link android.content.Intent#setDataAndNormalize}
      */
     public Uri normalizeScheme() {
         String scheme = getScheme();
diff --git a/core/java/android/widget/PopupWindow.java b/core/java/android/widget/PopupWindow.java
index 2438071..a929f3d 100644
--- a/core/java/android/widget/PopupWindow.java
+++ b/core/java/android/widget/PopupWindow.java
@@ -160,7 +160,22 @@
     private final EpicenterCallback mEpicenterCallback = new EpicenterCallback() {
         @Override
         public Rect onGetEpicenter(Transition transition) {
-            return mAnchorBounds;
+            final View anchor = mAnchor.get();
+            final View decor = mDecorView;
+            if (anchor == null || decor == null) {
+                return null;
+            }
+
+            final Rect anchorBounds = mAnchorBounds;
+            final int[] anchorLocation = mAnchor.get().getLocationOnScreen();
+            final int[] popupLocation = mDecorView.getLocationOnScreen();
+
+            // Compute the position of the anchor relative to the popup.
+            anchorBounds.set(0, 0, anchor.getWidth(), anchor.getHeight());
+            anchorBounds.offset(anchorLocation[0] - popupLocation[0],
+                    anchorLocation[1] - popupLocation[1]);
+
+            return anchorBounds;
         }
     };
 
@@ -1494,10 +1509,6 @@
 
         p.gravity |= Gravity.DISPLAY_CLIP_VERTICAL;
 
-        // Compute the position of the anchor relative to the popup.
-        mAnchorBounds.set(0, 0, anchorWidth, anchorHeight);
-        mAnchorBounds.offset(mDrawingLocation[0] - p.x, mDrawingLocation[1] - p.y);
-
         return onTop;
     }
 
@@ -1573,9 +1584,9 @@
     }
 
     /**
-     * <p>Dispose of the popup window. This method can be invoked only after
-     * {@link #showAsDropDown(android.view.View)} has been executed. Failing that, calling
-     * this method will have no effect.</p>
+     * Disposes of the popup window. This method can be invoked only after
+     * {@link #showAsDropDown(android.view.View)} has been executed. Failing
+     * that, calling this method will have no effect.
      *
      * @see #showAsDropDown(android.view.View)
      */
@@ -1589,6 +1600,9 @@
         mIsShowing = false;
 
         if (mExitTransition != null) {
+            // Cache the content view, since it may change without notice.
+            final View contentView = mContentView;
+
             mExitTransition.addTarget(mBackgroundView);
             mExitTransition.addListener(new Transition.TransitionListenerAdapter() {
                 @Override
@@ -1596,7 +1610,7 @@
                     transition.removeListener(this);
                     transition.removeTarget(mBackgroundView);
 
-                    dismissImmediate();
+                    dismissImmediate(contentView);
                 }
             });
 
@@ -1605,7 +1619,11 @@
             // Transition to invisible.
             mBackgroundView.setVisibility(View.INVISIBLE);
         } else {
-            dismissImmediate();
+            dismissImmediate(mContentView);
+        }
+
+        if (mOnDismissListener != null) {
+            mOnDismissListener.onDismiss();
         }
     }
 
@@ -1613,21 +1631,17 @@
      * Removes the popup from the window manager and tears down the supporting
      * view hierarchy, if necessary.
      */
-    private void dismissImmediate() {
+    private void dismissImmediate(View contentView) {
         try {
             mWindowManager.removeViewImmediate(mDecorView);
         } finally {
             mDecorView.removeView(mBackgroundView);
             mDecorView = null;
 
-            if (mBackgroundView != mContentView) {
-                ((ViewGroup) mBackgroundView).removeView(mContentView);
+            if (mBackgroundView != contentView) {
+                ((ViewGroup) mBackgroundView).removeView(contentView);
             }
             mBackgroundView = null;
-
-            if (mOnDismissListener != null) {
-                mOnDismissListener.onDismiss();
-            }
         }
     }
 
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 559d750..d157cdc 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -5078,14 +5078,31 @@
 
     <!-- Describes an item (or child) of a LayerDrawable. -->
     <declare-styleable name="LayerDrawableItem">
-        <!-- Left coordinate of the layer. -->
+        <!-- Left inset to apply to the layer. -->
         <attr name="left" />
-        <!-- Top coordinate of the layer. -->
+        <!-- Top inset to apply to the layer. -->
         <attr name="top" />
-        <!-- Right coordinate of the layer. -->
+        <!-- Right inset to apply to the layer. -->
         <attr name="right" />
-        <!-- Bottom coordinate of the layer. -->
+        <!-- Bottom inset to apply to the layer. -->
         <attr name="bottom" />
+        <!-- Start inset to apply to the layer. Overrides {@code left} or
+             {@code right} depending on layout direction. -->
+        <attr name="start" format="dimension" />
+        <!-- End inset to apply to the layer. Overrides {@code left} or
+             {@code right} depending on layout direction. -->
+        <attr name="end" format="dimension" />
+        <!-- Width of the layer. Defaults to the layer's intrinsic width. -->
+        <attr name="width" />
+        <!-- Height of the layer. Defaults to the layer's intrinsic height -->
+        <attr name="height" />
+        <!-- Gravity used to align the layer within its container. If no value
+             is specified, the default behavior depends on whether an explicit
+             width or height has been set, If no dimension is set, gravity in
+             that direction defaults to {@code fill_horizontal} or
+             {@code fill_vertical}; otherwise, it defaults to {@code left} or
+             {@code top}. -->
+        <attr name="gravity" />
         <!-- Drawable used to render the layer. -->
         <attr name="drawable" />
         <!-- Identifier of the layer. This can be used to retrieve the layer
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 11cc181..3bf9631 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2611,6 +2611,8 @@
   <public type="attr" name="trackTint" />
   <public type="attr" name="trackTintMode" />
   <public type="attr" name="resizeableActivity" />
+  <public type="attr" name="start" />
+  <public type="attr" name="end" />
 
   <public type="style" name="Widget.Material.Button.Colored" />
 
diff --git a/graphics/java/android/graphics/drawable/LayerDrawable.java b/graphics/java/android/graphics/drawable/LayerDrawable.java
index daf4427..505bd1d 100644
--- a/graphics/java/android/graphics/drawable/LayerDrawable.java
+++ b/graphics/java/android/graphics/drawable/LayerDrawable.java
@@ -29,6 +29,8 @@
 import android.graphics.PorterDuff.Mode;
 import android.graphics.Rect;
 import android.util.AttributeSet;
+import android.util.LayoutDirection;
+import android.view.Gravity;
 import android.view.View;
 
 import com.android.internal.R;
@@ -54,6 +56,11 @@
  * @attr ref android.R.styleable#LayerDrawableItem_top
  * @attr ref android.R.styleable#LayerDrawableItem_right
  * @attr ref android.R.styleable#LayerDrawableItem_bottom
+ * @attr ref android.R.styleable#LayerDrawableItem_start
+ * @attr ref android.R.styleable#LayerDrawableItem_end
+ * @attr ref android.R.styleable#LayerDrawableItem_width
+ * @attr ref android.R.styleable#LayerDrawableItem_height
+ * @attr ref android.R.styleable#LayerDrawableItem_gravity
  * @attr ref android.R.styleable#LayerDrawableItem_drawable
  * @attr ref android.R.styleable#LayerDrawableItem_id
 */
@@ -73,6 +80,9 @@
      */
     public static final int PADDING_MODE_STACK = 1;
 
+    /** Value used for undefined start and end insets. */
+    private static final int UNDEFINED_INSET = Integer.MIN_VALUE;
+
     LayerState mLayerState;
 
     private int mOpacityOverride = PixelFormat.UNKNOWN;
@@ -231,6 +241,16 @@
                 R.styleable.LayerDrawableItem_right, layer.mInsetR);
         layer.mInsetB = a.getDimensionPixelOffset(
                 R.styleable.LayerDrawableItem_bottom, layer.mInsetB);
+        layer.mInsetS = a.getDimensionPixelOffset(
+                R.styleable.LayerDrawableItem_start, layer.mInsetS);
+        layer.mInsetE = a.getDimensionPixelOffset(
+                R.styleable.LayerDrawableItem_end, layer.mInsetE);
+        layer.mWidth = a.getDimensionPixelSize(
+                R.styleable.LayerDrawableItem_width, layer.mWidth);
+        layer.mHeight = a.getDimensionPixelSize(
+                R.styleable.LayerDrawableItem_height, layer.mHeight);
+        layer.mGravity = a.getInteger(
+                R.styleable.LayerDrawableItem_gravity, layer.mGravity);
         layer.mId = a.getResourceId(R.styleable.LayerDrawableItem_id, layer.mId);
 
         final Drawable dr = a.getDrawable(R.styleable.LayerDrawableItem_drawable);
@@ -447,6 +467,89 @@
     }
 
     /**
+     * Sets an explicit size for the specified layer.
+     * <p>
+     * <strong>Note:</strong> Setting an explicit layer size changes the
+     * default layer gravity behavior. See {@link #setLayerGravity(int, int)}
+     * for more information.
+     *
+     * @param index the index of the drawable to adjust
+     * @param w width in pixels, or -1 to use the intrinsic width
+     * @param h height in pixels, or -1 to use the intrinsic height
+     *
+     * @see #getLayerWidth(int)
+     * @see #getLayerHeight(int)
+     * @attr ref android.R.styleable#LayerDrawableItem_width
+     * @attr ref android.R.styleable#LayerDrawableItem_height
+     */
+    public void setLayerSize(int index, int w, int h) {
+        final ChildDrawable childDrawable = mLayerState.mChildren[index];
+        childDrawable.mWidth = w;
+        childDrawable.mHeight = h;
+    }
+
+    /**
+     * @param index the index of the drawable to adjust
+     * @return the explicit width of the layer, or -1 if not specified
+     *
+     * @see #setLayerSize(int, int, int)
+     * @attr ref android.R.styleable#LayerDrawableItem_width
+     */
+    public int getLayerWidth(int index) {
+        final ChildDrawable childDrawable = mLayerState.mChildren[index];
+        return childDrawable.mWidth;
+    }
+
+    /**
+     * @param index the index of the drawable to adjust
+     * @return the explicit height of the layer, or -1 if not specified
+     *
+     * @see #setLayerSize(int, int, int)
+     * @attr ref android.R.styleable#LayerDrawableItem_height
+     */
+    public int getLayerHeight(int index) {
+        final ChildDrawable childDrawable = mLayerState.mChildren[index];
+        return childDrawable.mHeight;
+    }
+
+    /**
+     * Sets the gravity used to position or stretch the specified layer within
+     * its container. Gravity is applied after any layer insets (see
+     * {@link #setLayerInset(int, int, int, int, int)}) or padding (see
+     * {@link #setPaddingMode(int)}).
+     * <p>
+     * If gravity is specified as {@link Gravity#NO_GRAVITY}, the default
+     * behavior depends on whether an explicit width or height has been set
+     * (see {@link #setLayerSize(int, int, int)}), If a dimension is not set,
+     * gravity in that direction defaults to {@link Gravity#FILL_HORIZONTAL} or
+     * {@link Gravity#FILL_VERTICAL}; otherwise, gravity in that direction
+     * defaults to {@link Gravity#LEFT} or {@link Gravity#TOP}.
+     *
+     * @param index the index of the drawable to adjust
+     * @param gravity the gravity to set for the layer
+     *
+     * @see #getLayerGravity(int)
+     * @attr ref android.R.styleable#LayerDrawableItem_gravity
+     */
+    public void setLayerGravity(int index, int gravity) {
+        final ChildDrawable childDrawable = mLayerState.mChildren[index];
+        childDrawable.mGravity = gravity;
+    }
+
+    /**
+     * @param index the index of the layer
+     * @return the gravity used to position or stretch the specified layer
+     *         within its container
+     *
+     * @see #setLayerGravity(int, int)
+     * @attr ref android.R.styleable#LayerDrawableItem_gravity
+     */
+    public int getLayerGravity(int index) {
+        final ChildDrawable childDrawable = mLayerState.mChildren[index];
+        return childDrawable.mGravity;
+    }
+
+    /**
      * Specifies the insets in pixels for the drawable at the specified index.
      *
      * @param index the index of the drawable to adjust
@@ -454,13 +557,43 @@
      * @param t number of pixels to add to the top bound
      * @param r number of pixels to subtract from the right bound
      * @param b number of pixels to subtract from the bottom bound
+     *
+     * @attr ref android.R.styleable#LayerDrawableItem_left
+     * @attr ref android.R.styleable#LayerDrawableItem_top
+     * @attr ref android.R.styleable#LayerDrawableItem_right
+     * @attr ref android.R.styleable#LayerDrawableItem_bottom
      */
     public void setLayerInset(int index, int l, int t, int r, int b) {
+        setLayerInsetInternal(index, l, t, r, b, UNDEFINED_INSET, UNDEFINED_INSET);
+    }
+
+    /**
+     * Specifies the relative insets in pixels for the drawable at the
+     * specified index.
+     *
+     * @param index the index of the drawable to adjust
+     * @param s number of pixels to inset from the start bound
+     * @param t number of pixels to inset from the top bound
+     * @param e number of pixels to inset from the end bound
+     * @param b number of pixels to inset from the bottom bound
+     *
+     * @attr ref android.R.styleable#LayerDrawableItem_start
+     * @attr ref android.R.styleable#LayerDrawableItem_top
+     * @attr ref android.R.styleable#LayerDrawableItem_end
+     * @attr ref android.R.styleable#LayerDrawableItem_bottom
+     */
+    public void setLayerInsetRelative(int index, int s, int t, int e, int b) {
+        setLayerInsetInternal(index, 0, t, 0, b, s, e);
+    }
+
+    private void setLayerInsetInternal(int index, int l, int t, int r, int b, int s, int e) {
         final ChildDrawable childDrawable = mLayerState.mChildren[index];
         childDrawable.mInsetL = l;
         childDrawable.mInsetT = t;
         childDrawable.mInsetR = r;
         childDrawable.mInsetB = b;
+        childDrawable.mInsetS = s;
+        childDrawable.mInsetE = e;
     }
 
     /**
@@ -770,7 +903,7 @@
         }
 
         if (paddingChanged) {
-            onBoundsChange(getBounds());
+            updateLayerBounds(getBounds());
         }
 
         return changed;
@@ -795,7 +928,7 @@
         }
 
         if (paddingChanged) {
-            onBoundsChange(getBounds());
+            updateLayerBounds(getBounds());
         }
 
         return changed;
@@ -803,18 +936,50 @@
 
     @Override
     protected void onBoundsChange(Rect bounds) {
+        updateLayerBounds(bounds);
+    }
+
+    private void updateLayerBounds(Rect bounds) {
         int padL = 0;
         int padT = 0;
         int padR = 0;
         int padB = 0;
 
+        final Rect outRect = mTmpRect;
+        final int layoutDirection = getLayoutDirection();
         final boolean nest = mLayerState.mPaddingMode == PADDING_MODE_NEST;
         final ChildDrawable[] array = mLayerState.mChildren;
         final int N = mLayerState.mNum;
         for (int i = 0; i < N; i++) {
             final ChildDrawable r = array[i];
-            r.mDrawable.setBounds(bounds.left + r.mInsetL + padL, bounds.top + r.mInsetT + padT,
-                    bounds.right - r.mInsetR - padR, bounds.bottom - r.mInsetB - padB);
+            final Drawable d = r.mDrawable;
+            final Rect container = d.getBounds();
+
+            // Take the resolved layout direction into account. If start / end
+            // padding are defined, they will be resolved (hence overriding) to
+            // left / right or right / left depending on the resolved layout
+            // direction. If start / end padding are not defined, use the
+            // left / right ones.
+            final int insetL, insetR;
+            if (layoutDirection == LayoutDirection.RTL) {
+                insetL = r.mInsetE == UNDEFINED_INSET ? r.mInsetL : r.mInsetE;
+                insetR = r.mInsetS == UNDEFINED_INSET ? r.mInsetR : r.mInsetS;
+            } else {
+                insetL = r.mInsetS == UNDEFINED_INSET ? r.mInsetL : r.mInsetS;
+                insetR = r.mInsetE == UNDEFINED_INSET ? r.mInsetR : r.mInsetE;
+            }
+
+            // Establish containing region based on aggregate padding and
+            // requested insets for the current layer.
+            container.set(bounds.left + insetL + padL, bounds.top + r.mInsetT + padT,
+                    bounds.right - insetR - padR, bounds.bottom - r.mInsetB - padB);
+
+            // Apply resolved gravity to drawable based on resolved size.
+            final int gravity = resolveGravity(r.mGravity, r.mWidth, r.mHeight);
+            final int w = r.mWidth < 0 ? d.getIntrinsicWidth() : r.mWidth;
+            final int h = r.mHeight < 0 ? d.getIntrinsicHeight() : r.mHeight;
+            Gravity.apply(gravity, w, h, container, outRect, layoutDirection);
+            d.setBounds(outRect);
 
             if (nest) {
                 padL += mPaddingL[i];
@@ -825,6 +990,38 @@
         }
     }
 
+    /**
+     * Resolves layer gravity given explicit gravity and dimensions.
+     * <p>
+     * If the client hasn't specified a gravity but has specified an explicit
+     * dimension, defaults to START or TOP. Otherwise, defaults to FILL to
+     * preserve legacy behavior.
+     *
+     * @param gravity
+     * @param width
+     * @param height
+     * @return
+     */
+    private int resolveGravity(int gravity, int width, int height) {
+        if (!Gravity.isHorizontal(gravity)) {
+            if (width < 0) {
+                gravity |= Gravity.FILL_HORIZONTAL;
+            } else {
+                gravity |= Gravity.START;
+            }
+        }
+
+        if (!Gravity.isVertical(gravity)) {
+            if (height < 0) {
+                gravity |= Gravity.FILL_VERTICAL;
+            } else {
+                gravity |= Gravity.TOP;
+            }
+        }
+
+        return gravity;
+    }
+
     @Override
     public int getIntrinsicWidth() {
         int width = -1;
@@ -836,7 +1033,8 @@
         final int N = mLayerState.mNum;
         for (int i = 0; i < N; i++) {
             final ChildDrawable r = array[i];
-            final int w = r.mDrawable.getIntrinsicWidth() + r.mInsetL + r.mInsetR + padL + padR;
+            final int minWidth = r.mWidth < 0 ? r.mDrawable.getIntrinsicWidth() : r.mWidth;
+            final int w = minWidth + r.mInsetL + r.mInsetR + padL + padR;
             if (w > width) {
                 width = w;
             }
@@ -861,7 +1059,8 @@
         final int N = mLayerState.mNum;
         for (int i = 0; i < N; i++) {
             final ChildDrawable r = array[i];
-            int h = r.mDrawable.getIntrinsicHeight() + r.mInsetT + r.mInsetB + padT + padB;
+            final int minHeight = r.mHeight < 0 ? r.mDrawable.getIntrinsicHeight() : r.mHeight;
+            final int h = minHeight + r.mInsetT + r.mInsetB + padT + padB;
             if (h > height) {
                 height = h;
             }
@@ -948,18 +1147,24 @@
     /** @hide */
     @Override
     public void setLayoutDirection(int layoutDirection) {
+        super.setLayoutDirection(layoutDirection);
         final ChildDrawable[] array = mLayerState.mChildren;
         final int N = mLayerState.mNum;
         for (int i = 0; i < N; i++) {
             array[i].mDrawable.setLayoutDirection(layoutDirection);
         }
-        super.setLayoutDirection(layoutDirection);
+        updateLayerBounds(getBounds());
     }
 
     static class ChildDrawable {
         public Drawable mDrawable;
         public int[] mThemeAttrs;
         public int mInsetL, mInsetT, mInsetR, mInsetB;
+        public int mInsetS = UNDEFINED_INSET;
+        public int mInsetE = UNDEFINED_INSET;
+        public int mWidth = -1;
+        public int mHeight = -1;
+        public int mGravity = Gravity.NO_GRAVITY;
         public int mId = View.NO_ID;
 
         ChildDrawable() {
@@ -981,6 +1186,11 @@
             mInsetT = orig.mInsetT;
             mInsetR = orig.mInsetR;
             mInsetB = orig.mInsetB;
+            mInsetS = orig.mInsetS;
+            mInsetE = orig.mInsetE;
+            mWidth = orig.mWidth;
+            mHeight = orig.mHeight;
+            mGravity = orig.mGravity;
             mId = orig.mId;
         }
     }
diff --git a/location/java/android/location/GpsSatellite.java b/location/java/android/location/GpsSatellite.java
index 17af4a6..820f5746 100644
--- a/location/java/android/location/GpsSatellite.java
+++ b/location/java/android/location/GpsSatellite.java
@@ -40,13 +40,17 @@
      * cached GpsStatus instance to the client's copy.
      */
     void setStatus(GpsSatellite satellite) {
-        mValid = satellite.mValid;
-        mHasEphemeris = satellite.mHasEphemeris;
-        mHasAlmanac = satellite.mHasAlmanac;
-        mUsedInFix = satellite.mUsedInFix;
-        mSnr = satellite.mSnr;
-        mElevation = satellite.mElevation;
-        mAzimuth = satellite.mAzimuth;
+        if (satellite == null) {
+            mValid = false;
+        } else {
+            mValid = satellite.mValid;
+            mHasEphemeris = satellite.mHasEphemeris;
+            mHasAlmanac = satellite.mHasAlmanac;
+            mUsedInFix = satellite.mUsedInFix;
+            mSnr = satellite.mSnr;
+            mElevation = satellite.mElevation;
+            mAzimuth = satellite.mAzimuth;
+        }
     }
 
     /**
diff --git a/location/java/android/location/GpsStatus.java b/location/java/android/location/GpsStatus.java
index 4af55a6..323f326 100644
--- a/location/java/android/location/GpsStatus.java
+++ b/location/java/android/location/GpsStatus.java
@@ -16,6 +16,8 @@
 
 package android.location;
 
+import android.util.SparseArray;
+
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 
@@ -29,20 +31,24 @@
 
     /* These package private values are modified by the LocationManager class */
     private int mTimeToFirstFix;
-    private GpsSatellite mSatellites[] = new GpsSatellite[NUM_SATELLITES];
+    private final SparseArray<GpsSatellite> mSatellites = new SparseArray<>();
 
     private final class SatelliteIterator implements Iterator<GpsSatellite> {
 
-        private GpsSatellite[] mSatellites;
-        int mIndex = 0;
+        private final SparseArray<GpsSatellite> mSatellites;
+        private final int mSatellitesCount;
 
-        SatelliteIterator(GpsSatellite[] satellites) {
+        private int mIndex = 0;
+
+        SatelliteIterator(SparseArray<GpsSatellite> satellites) {
             mSatellites = satellites;
+            mSatellitesCount = satellites.size();
         }
 
         public boolean hasNext() {
-            for (int i = mIndex; i < mSatellites.length; i++) {
-                if (mSatellites[i].mValid) {
+            for (; mIndex < mSatellitesCount; ++mIndex) {
+                GpsSatellite satellite = mSatellites.valueAt(mIndex);
+                if (satellite.mValid) {
                     return true;
                 }
             }
@@ -50,8 +56,9 @@
         }
 
         public GpsSatellite next() {
-            while (mIndex < mSatellites.length) {
-                GpsSatellite satellite = mSatellites[mIndex++];
+            while (mIndex < mSatellitesCount) {
+                GpsSatellite satellite = mSatellites.valueAt(mIndex);
+                ++mIndex;
                 if (satellite.mValid) {
                     return satellite;
                 }
@@ -106,7 +113,7 @@
          * <li> {@link GpsStatus#GPS_EVENT_SATELLITE_STATUS}
          * </ul>
          *
-         * When this method is called, the client should call 
+         * When this method is called, the client should call
          * {@link LocationManager#getGpsStatus} to get additional
          * status information.
          *
@@ -127,11 +134,8 @@
         void onNmeaReceived(long timestamp, String nmea);
     }
 
-    GpsStatus() {
-        for (int i = 0; i < mSatellites.length; i++) {
-            mSatellites[i] = new GpsSatellite(i + 1);
-        }
-    }
+    // For API-compat a public ctor() is not available
+    GpsStatus() {}
 
     /**
      * Used internally within {@link LocationManager} to copy GPS status
@@ -141,18 +145,17 @@
     synchronized void setStatus(int svCount, int[] prns, float[] snrs,
             float[] elevations, float[] azimuths, int ephemerisMask,
             int almanacMask, int usedInFixMask) {
-        int i;
+        clearSatellites();
+        for (int i = 0; i < svCount; i++) {
+            int prn = prns[i];
+            int prnShift = (1 << (prn - 1));
+            if (prn > 0 && prn <= NUM_SATELLITES) {
+                GpsSatellite satellite = mSatellites.get(prn);
+                if (satellite == null) {
+                    satellite = new GpsSatellite(prn);
+                    mSatellites.put(prn, satellite);
+                }
 
-        for (i = 0; i < mSatellites.length; i++) {
-            mSatellites[i].mValid = false;
-        }
-        
-        for (i = 0; i < svCount; i++) {
-            int prn = prns[i] - 1;
-            int prnShift = (1 << prn);
-            if (prn >= 0 && prn < mSatellites.length) {
-                GpsSatellite satellite = mSatellites[prn];
-    
                 satellite.mValid = true;
                 satellite.mSnr = snrs[i];
                 satellite.mElevation = elevations[i];
@@ -172,10 +175,38 @@
      */
     void setStatus(GpsStatus status) {
         mTimeToFirstFix = status.getTimeToFirstFix();
+        clearSatellites();
 
-        for (int i = 0; i < mSatellites.length; i++) {
-            mSatellites[i].setStatus(status.mSatellites[i]);
-        } 
+        SparseArray<GpsSatellite> otherSatellites = status.mSatellites;
+        int otherSatellitesCount = otherSatellites.size();
+        int satelliteIndex = 0;
+        // merge both sparse arrays, note that we have already invalidated the elements in the
+        // receiver array
+        for (int i = 0; i < otherSatellitesCount; ++i) {
+            GpsSatellite otherSatellite = otherSatellites.valueAt(i);
+            int otherSatellitePrn = otherSatellite.getPrn();
+
+            int satellitesCount = mSatellites.size();
+            while (satelliteIndex < satellitesCount
+                    && mSatellites.valueAt(satelliteIndex).getPrn() < otherSatellitePrn) {
+                ++satelliteIndex;
+            }
+
+            if (satelliteIndex < mSatellites.size()) {
+                GpsSatellite satellite = mSatellites.valueAt(satelliteIndex);
+                if (satellite.getPrn() == otherSatellitePrn) {
+                    satellite.setStatus(otherSatellite);
+                } else {
+                    satellite = new GpsSatellite(otherSatellitePrn);
+                    satellite.setStatus(otherSatellite);
+                    mSatellites.put(otherSatellitePrn, satellite);
+                }
+            } else {
+                GpsSatellite satellite = new GpsSatellite(otherSatellitePrn);
+                satellite.setStatus(otherSatellite);
+                mSatellites.append(otherSatellitePrn, satellite);
+            }
+        }
     }
 
     void setTimeToFirstFix(int ttff) {
@@ -183,7 +214,7 @@
     }
 
     /**
-     * Returns the time required to receive the first fix since the most recent 
+     * Returns the time required to receive the first fix since the most recent
      * restart of the GPS engine.
      *
      * @return time to first fix in milliseconds
@@ -211,4 +242,12 @@
     public int getMaxSatellites() {
         return NUM_SATELLITES;
     }
+
+    private void clearSatellites() {
+        int satellitesCount = mSatellites.size();
+        for (int i = 0; i < satellitesCount; i++) {
+            GpsSatellite satellite = mSatellites.valueAt(i);
+            satellite.mValid = false;
+        }
+    }
 }
diff --git a/location/tests/locationtests/src/android/location/GpsStatusTest.java b/location/tests/locationtests/src/android/location/GpsStatusTest.java
new file mode 100644
index 0000000..4808faf
--- /dev/null
+++ b/location/tests/locationtests/src/android/location/GpsStatusTest.java
@@ -0,0 +1,356 @@
+/*
+ * 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.location;
+
+import junit.framework.TestCase;
+
+import android.test.suitebuilder.annotation.SmallTest;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Random;
+import java.util.Set;
+
+/**
+ * Unit tests for {@link GpsStatus}.
+ */
+@SmallTest
+public class GpsStatusTest extends TestCase {
+
+    private static final int MAX_VALUE = 250;
+
+    private final Random mRandom = new Random();
+
+    private GpsStatus mStatus;
+    private int mCount;
+    private int[] mPrns;
+    private float[] mSnrs;
+    private float[] mElevations;
+    private float[] mAzimuth;
+    private int mEphemerisMask;
+    private int mAlmanacMask;
+    private int mUsedInFixMask;
+
+    public void setUp() throws Exception {
+        super.setUp();
+        mStatus = createGpsStatus();
+        generateSatellitesData(generateInt());
+    }
+
+    public void testEmptyGpsStatus() throws Exception {
+        verifyIsEmpty(mStatus);
+    }
+
+    public void testGpsStatusIterator() throws Exception {
+        generateSatellitesData(2);
+        setSatellites(mStatus);
+        Iterator<GpsSatellite> iterator = mStatus.getSatellites().iterator();
+        assertTrue("hasNext(1)", iterator.hasNext());
+        assertTrue("hasNext(1) does not overflow", iterator.hasNext());
+        GpsSatellite satellite1 = iterator.next();
+        assertNotNull("satellite", satellite1);
+        assertTrue("hasNext(2)", iterator.hasNext());
+        assertTrue("hasNext(2) does not overflow", iterator.hasNext());
+        GpsSatellite satellite2 = iterator.next();
+        assertNotNull("satellite", satellite2);
+        assertFalse("hasNext() no elements", iterator.hasNext());
+    }
+
+    public void testTtff() throws Exception {
+        int testTtff = generateInt();
+        set(mStatus, testTtff);
+        verifyTtff(mStatus, testTtff);
+    }
+
+    public void testCopyTtff() throws Exception {
+        int testTtff = generateInt();
+        verifyTtff(mStatus, 0);
+
+        GpsStatus otherStatus = createGpsStatus();
+        set(otherStatus, testTtff);
+        verifyTtff(otherStatus, testTtff);
+
+        set(mStatus, otherStatus);
+        verifyTtff(mStatus, testTtff);
+    }
+
+    public void testSetSatellites() throws Exception {
+        setSatellites(mStatus);
+        verifySatellites(mStatus);
+    }
+
+    public void testCopySatellites() throws Exception {
+        verifyIsEmpty(mStatus);
+
+        GpsStatus otherStatus = createGpsStatus();
+        setSatellites(otherStatus);
+        verifySatellites(otherStatus);
+
+        set(mStatus, otherStatus);
+        verifySatellites(mStatus);
+    }
+
+    public void testOverrideSatellites() throws Exception {
+        setSatellites(mStatus);
+        verifySatellites(mStatus);
+
+        GpsStatus otherStatus = createGpsStatus();
+        generateSatellitesData(mCount, true /* reusePrns */);
+        setSatellites(otherStatus);
+        verifySatellites(otherStatus);
+
+        set(mStatus, otherStatus);
+        verifySatellites(mStatus);
+    }
+
+    public void testAddSatellites() throws Exception {
+        int count = 10;
+        generateSatellitesData(count);
+        setSatellites(mStatus);
+        verifySatellites(mStatus);
+
+        GpsStatus otherStatus = createGpsStatus();
+        generateSatellitesData(count);
+        setSatellites(otherStatus);
+        verifySatellites(otherStatus);
+
+        set(mStatus, otherStatus);
+        verifySatellites(mStatus);
+    }
+
+    public void testAddMoreSatellites() throws Exception {
+        int count = 25;
+        generateSatellitesData(count);
+        setSatellites(mStatus);
+        verifySatellites(mStatus);
+
+        GpsStatus otherStatus = createGpsStatus();
+        generateSatellitesData(count * 2);
+        setSatellites(otherStatus);
+        verifySatellites(otherStatus);
+
+        set(mStatus, otherStatus);
+        verifySatellites(mStatus);
+    }
+
+    public void testAddLessSatellites() throws Exception {
+        int count = 25;
+        generateSatellitesData(count * 2);
+        setSatellites(mStatus);
+        verifySatellites(mStatus);
+
+        GpsStatus otherStatus = createGpsStatus();
+        generateSatellitesData(count);
+        setSatellites(otherStatus);
+        verifySatellites(otherStatus);
+
+        set(mStatus, otherStatus);
+        verifySatellites(mStatus);
+    }
+
+    private static void verifyIsEmpty(GpsStatus status) {
+        verifySatelliteCount(status, 0);
+        verifyTtff(status, 0);
+    }
+
+    private static void verifySatelliteCount(GpsStatus status, int expectedCount) {
+        int satellites = 0;
+        for (GpsSatellite s : status.getSatellites()) {
+            ++satellites;
+        }
+        assertEquals("GpsStatus::SatelliteCount", expectedCount, satellites);
+    }
+
+    private void verifySatellites(GpsStatus status) {
+        verifySatelliteCount(status, mCount);
+        verifySatellites(status, mCount, mPrns, mSnrs, mElevations, mAzimuth, mEphemerisMask,
+                mAlmanacMask, mUsedInFixMask);
+    }
+
+    private static void verifySatellites(
+            GpsStatus status,
+            int count,
+            int[] prns,
+            float[] snrs,
+            float[] elevations,
+            float[] azimuth,
+            int ephemerisMask,
+            int almanacMask,
+            int usedInFixMask) {
+        for (int i = 0; i < count; ++i) {
+            int prn = prns[i];
+            GpsSatellite satellite = getSatellite(status, prn);
+            assertNotNull(getSatelliteAssertInfo(i, prn, "non-null"), satellite);
+            assertEquals(getSatelliteAssertInfo(i, prn, "Snr"), snrs[i], satellite.getSnr());
+            assertEquals(
+                    getSatelliteAssertInfo(i, prn, "Elevation"),
+                    elevations[i],
+                    satellite.getElevation());
+            assertEquals(
+                    getSatelliteAssertInfo(i, prn, "Azimuth"),
+                    azimuth[i],
+                    satellite.getAzimuth());
+            int prnShift = 1 << (prn - 1);
+            assertEquals(
+                    getSatelliteAssertInfo(i, prn, "ephemeris"),
+                    (ephemerisMask & prnShift) != 0,
+                    satellite.hasEphemeris());
+            assertEquals(
+                    getSatelliteAssertInfo(i, prn, "almanac"),
+                    (almanacMask & prnShift) != 0,
+                    satellite.hasAlmanac());
+            assertEquals(
+                    getSatelliteAssertInfo(i, prn, "usedInFix"),
+                    (usedInFixMask & prnShift) != 0,
+                    satellite.usedInFix());
+        }
+    }
+
+    private static void verifyTtff(GpsStatus status, int expectedTtff) {
+        assertEquals("GpsStatus::TTFF", expectedTtff, status.getTimeToFirstFix());
+    }
+
+    private static GpsStatus createGpsStatus() throws Exception {
+        Constructor<GpsStatus>  ctor = GpsStatus.class.getDeclaredConstructor();
+        ctor.setAccessible(true);
+        return ctor.newInstance();
+    }
+
+    private static void set(GpsStatus status, int ttff) throws Exception {
+        Class<?> statusClass = status.getClass();
+        Method setTtff = statusClass.getDeclaredMethod("setTimeToFirstFix", Integer.TYPE);
+        setTtff.setAccessible(true);
+        setTtff.invoke(status, ttff);
+    }
+
+    private static void set(GpsStatus status, GpsStatus statusToSet) throws Exception {
+        Class<?> statusClass = status.getClass();
+        Method setStatus = statusClass.getDeclaredMethod("setStatus", statusClass);
+        setStatus.setAccessible(true);
+        setStatus.invoke(status, statusToSet);
+    }
+
+    private void setSatellites(GpsStatus status) throws Exception {
+        set(status, mCount, mPrns, mSnrs, mElevations, mAzimuth, mEphemerisMask, mAlmanacMask,
+                mUsedInFixMask);
+    }
+
+    private static void set(
+            GpsStatus status,
+            int count,
+            int[] prns,
+            float[] snrs,
+            float[] elevations,
+            float[] azimuth,
+            int ephemerisMask,
+            int almanacMask,
+            int usedInFixMask) throws Exception {
+        Class<?> statusClass = status.getClass();
+        Class<?> intClass = Integer.TYPE;
+        Class<?> floatArrayClass = Class.forName("[F");
+        Method setStatus = statusClass.getDeclaredMethod(
+                "setStatus",
+                intClass,
+                Class.forName("[I"),
+                floatArrayClass,
+                floatArrayClass,
+                floatArrayClass,
+                intClass,
+                intClass,
+                intClass);
+        setStatus.setAccessible(true);
+        setStatus.invoke(
+                status,
+                count,
+                prns,
+                snrs,
+                elevations,
+                azimuth,
+                ephemerisMask,
+                almanacMask,
+                usedInFixMask);
+    }
+
+    private int generateInt() {
+        return mRandom.nextInt(MAX_VALUE) + 1;
+    }
+
+    private int[] generateIntArray(int count) {
+        Set<Integer> generatedPrns = new HashSet<>();
+        int[] array = new int[count];
+        for(int i = 0; i < count; ++i) {
+            int generated;
+            do {
+                generated = generateInt();
+            } while (generatedPrns.contains(generated));
+            array[i] = generated;
+            generatedPrns.add(generated);
+        }
+        return array;
+    }
+
+    private float[] generateFloatArray(int count) {
+        float[] array = new float[count];
+        for(int i = 0; i < count; ++i) {
+            array[i] = generateInt();
+        }
+        return array;
+    }
+
+    private int generateMask(int[] prns) {
+        int mask = 0;
+        int prnsLength = prns.length;
+        for (int i = 0; i < prnsLength; ++i) {
+            if (mRandom.nextBoolean()) {
+                mask |= 1 << (prns[i] - 1);
+            }
+        }
+        return mask;
+    }
+
+    private void generateSatellitesData(int count) {
+        generateSatellitesData(count, false /* reusePrns */);
+    }
+
+    private void generateSatellitesData(int count, boolean reusePrns) {
+        mCount = count;
+        if (!reusePrns) {
+            mPrns = generateIntArray(count);
+        }
+        mSnrs = generateFloatArray(count);
+        mElevations = generateFloatArray(count);
+        mAzimuth = generateFloatArray(count);
+        mEphemerisMask = generateMask(mPrns);
+        mAlmanacMask = generateMask(mPrns);
+        mUsedInFixMask = generateMask(mPrns);
+    }
+
+    private static GpsSatellite getSatellite(GpsStatus status, int prn) {
+        for (GpsSatellite satellite : status.getSatellites()) {
+            if (satellite.getPrn() == prn) {
+                return satellite;
+            }
+        }
+        return null;
+    }
+
+    private static String getSatelliteAssertInfo(int index, int prn, String param) {
+        return String.format("Satellite::%s [i=%d, prn=%d]", param, index, prn);
+    }
+}
diff --git a/media/java/android/media/AudioAttributes.java b/media/java/android/media/AudioAttributes.java
index 489f552..ca242e4 100644
--- a/media/java/android/media/AudioAttributes.java
+++ b/media/java/android/media/AudioAttributes.java
@@ -709,7 +709,13 @@
         }
     }
 
-    /** @hide */
+    /**
+     * @hide
+     * Only use to get which stream type should be used for volume control, NOT for audio playback
+     * (all audio playback APIs are supposed to take AudioAttributes as input parameters)
+     * @param aa non-null AudioAttributes.
+     * @return a valid stream type for volume control that matches the attributes.
+     */
     public static int toLegacyStreamType(AudioAttributes aa) {
         // flags to stream type mapping
         if ((aa.getFlags() & FLAG_AUDIBILITY_ENFORCED) == FLAG_AUDIBILITY_ENFORCED) {
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index f448dc2..986ae46 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -46,9 +46,9 @@
 import android.util.Log;
 import android.view.KeyEvent;
 
-import java.util.HashMap;
 import java.util.ArrayList;
-
+import java.util.HashMap;
+import java.util.Iterator;
 
 /**
  * AudioManager provides access to volume and ringer mode control.
@@ -3598,11 +3598,13 @@
                     newPorts.clear();
                     status = AudioSystem.listAudioPorts(newPorts, portGeneration);
                     if (status != SUCCESS) {
+                        Log.w(TAG, "updateAudioPortCache: listAudioPorts failed");
                         return status;
                     }
                     newPatches.clear();
                     status = AudioSystem.listAudioPatches(newPatches, patchGeneration);
                     if (status != SUCCESS) {
+                        Log.w(TAG, "updateAudioPortCache: listAudioPatches failed");
                         return status;
                     }
                 } while (patchGeneration[0] != portGeneration[0]);
@@ -3611,20 +3613,35 @@
                     for (int j = 0; j < newPatches.get(i).sources().length; j++) {
                         AudioPortConfig portCfg = updatePortConfig(newPatches.get(i).sources()[j],
                                                                    newPorts);
-                        if (portCfg == null) {
-                            return ERROR;
-                        }
                         newPatches.get(i).sources()[j] = portCfg;
                     }
                     for (int j = 0; j < newPatches.get(i).sinks().length; j++) {
                         AudioPortConfig portCfg = updatePortConfig(newPatches.get(i).sinks()[j],
                                                                    newPorts);
-                        if (portCfg == null) {
-                            return ERROR;
-                        }
                         newPatches.get(i).sinks()[j] = portCfg;
                     }
                 }
+                for (Iterator<AudioPatch> i = newPatches.iterator(); i.hasNext(); ) {
+                    AudioPatch newPatch = i.next();
+                    boolean hasInvalidPort = false;
+                    for (AudioPortConfig portCfg : newPatch.sources()) {
+                        if (portCfg == null) {
+                            hasInvalidPort = true;
+                            break;
+                        }
+                    }
+                    for (AudioPortConfig portCfg : newPatch.sinks()) {
+                        if (portCfg == null) {
+                            hasInvalidPort = true;
+                            break;
+                        }
+                    }
+                    if (hasInvalidPort) {
+                        // Temporarily remove patches with invalid ports. One who created the patch
+                        // is responsible for dealing with the port change.
+                        i.remove();
+                    }
+                }
 
                 sAudioPortsCached = newPorts;
                 sAudioPatchesCached = newPatches;
diff --git a/media/java/android/media/tv/TvContract.java b/media/java/android/media/tv/TvContract.java
index 5b92266..bc9722e 100644
--- a/media/java/android/media/tv/TvContract.java
+++ b/media/java/android/media/tv/TvContract.java
@@ -756,8 +756,9 @@
          * </p><p>
          * Note that this sub-directory also supports opening the logo as an asset file in write
          * mode.  Callers can create or replace the primary logo associated with this channel by
-         * opening the asset file and writing the full-size photo contents into it.  When the file
-         * is closed, the image will be parsed, sized down if necessary, and stored.
+         * opening the asset file and writing the full-size photo contents into it. (Make sure there
+         * is no padding around the logo image.) When the file is closed, the image will be parsed,
+         * sized down if necessary, and stored.
          * </p><p>
          * Usage example:
          * <pre>
diff --git a/services/core/java/com/android/server/connectivity/NetworkMonitor.java b/services/core/java/com/android/server/connectivity/NetworkMonitor.java
index f900d0d..87f78c1 100644
--- a/services/core/java/com/android/server/connectivity/NetworkMonitor.java
+++ b/services/core/java/com/android/server/connectivity/NetworkMonitor.java
@@ -28,6 +28,7 @@
 import android.net.NetworkCapabilities;
 import android.net.NetworkInfo;
 import android.net.NetworkRequest;
+import android.net.ProxyInfo;
 import android.net.TrafficStats;
 import android.net.Uri;
 import android.net.wifi.WifiInfo;
@@ -656,12 +657,36 @@
         int httpResponseCode = 599;
         try {
             URL url = new URL("http", mServer, "/generate_204");
+            // On networks with a PAC instead of fetching a URL that should result in a 204
+            // reponse, we instead simply fetch the PAC script.  This is done for a few reasons:
+            // 1. At present our PAC code does not yet handle multiple PACs on multiple networks
+            //    until something like https://android-review.googlesource.com/#/c/115180/ lands.
+            //    Network.openConnection() will ignore network-specific PACs and instead fetch
+            //    using NO_PROXY.  If a PAC is in place, the only fetch we know will succeed with
+            //    NO_PROXY is the fetch of the PAC itself.
+            // 2. To proxy the generate_204 fetch through a PAC would require a number of things
+            //    happen before the fetch can commence, namely:
+            //        a) the PAC script be fetched
+            //        b) a PAC script resolver service be fired up and resolve mServer
+            //    Network validation could be delayed until these prerequisities are satisifed or
+            //    could simply be left to race them.  Neither is an optimal solution.
+            // 3. PAC scripts are sometimes used to block or restrict Internet access and may in
+            //    fact block fetching of the generate_204 URL which would lead to false negative
+            //    results for network validation.
+            boolean fetchPac = false;
+            {
+                final ProxyInfo proxyInfo = mNetworkAgentInfo.linkProperties.getHttpProxy();
+                if (proxyInfo != null && !Uri.EMPTY.equals(proxyInfo.getPacFileUrl())) {
+                    url = new URL(proxyInfo.getPacFileUrl().toString());
+                    fetchPac = true;
+                }
+            }
             if (DBG) {
                 log("Checking " + url.toString() + " on " +
                         mNetworkAgentInfo.networkInfo.getExtraInfo());
             }
             urlConnection = (HttpURLConnection) mNetworkAgentInfo.network.openConnection(url);
-            urlConnection.setInstanceFollowRedirects(false);
+            urlConnection.setInstanceFollowRedirects(fetchPac);
             urlConnection.setConnectTimeout(SOCKET_TIMEOUT_MS);
             urlConnection.setReadTimeout(SOCKET_TIMEOUT_MS);
             urlConnection.setUseCaches(false);
@@ -695,6 +720,11 @@
                 httpResponseCode = 204;
             }
 
+            if (httpResponseCode == 200 && fetchPac) {
+                if (DBG) log("PAC fetch 200 response interpreted as 204 response.");
+                httpResponseCode = 204;
+            }
+
             sendNetworkConditionsBroadcast(true /* response received */,
                     httpResponseCode != 204 /* isCaptivePortal */,
                     requestTimestamp, responseTimestamp);