diff --git a/core/java/android/accounts/AccountManagerService.java b/core/java/android/accounts/AccountManagerService.java
index 894e196..93983a6 100644
--- a/core/java/android/accounts/AccountManagerService.java
+++ b/core/java/android/accounts/AccountManagerService.java
@@ -1786,22 +1786,6 @@
         }
     }
 
-    private String getMetaValue(String key) {
-        synchronized (mCacheLock) {
-            final SQLiteDatabase db = mOpenHelper.getReadableDatabase();
-            Cursor c = db.query(TABLE_META,
-                    new String[]{META_VALUE}, META_KEY + "=?", new String[]{key}, null, null, null);
-            try {
-                if (c.moveToNext()) {
-                    return c.getString(0);
-                }
-                return null;
-            } finally {
-                c.close();
-            }
-        }
-    }
-
     public IBinder onBind(Intent intent) {
         return asBinder();
     }
diff --git a/core/java/android/bluetooth/BluetoothDeviceProfileState.java b/core/java/android/bluetooth/BluetoothDeviceProfileState.java
index 9855709..f4693c2 100644
--- a/core/java/android/bluetooth/BluetoothDeviceProfileState.java
+++ b/core/java/android/bluetooth/BluetoothDeviceProfileState.java
@@ -679,7 +679,6 @@
         @Override
         protected boolean processMessage(Message message) {
             log("IncomingA2dp State->Processing Message: " + message.what);
-            Message deferMsg = new Message();
             switch(message.what) {
                 case CONNECT_HFP_OUTGOING:
                     deferMessage(message);
diff --git a/core/java/android/nfc/ApduList.aidl b/core/java/android/nfc/ApduList.aidl
new file mode 100644
index 0000000..f6236b2
--- /dev/null
+++ b/core/java/android/nfc/ApduList.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2011 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.nfc;
+
+parcelable ApduList;
\ No newline at end of file
diff --git a/core/java/android/nfc/ApduList.java b/core/java/android/nfc/ApduList.java
new file mode 100644
index 0000000..85b0547
--- /dev/null
+++ b/core/java/android/nfc/ApduList.java
@@ -0,0 +1,68 @@
+package android.nfc;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @hide
+ */
+public class ApduList implements Parcelable {
+
+    private ArrayList<byte[]> commands = new ArrayList<byte[]>();
+
+    public ApduList() {
+    }
+
+    public void add(byte[] command) {
+        commands.add(command);
+    }
+
+    public List<byte[]> get() {
+        return commands;
+    }
+
+    public static final Parcelable.Creator<ApduList> CREATOR =
+        new Parcelable.Creator<ApduList>() {
+        @Override
+        public ApduList createFromParcel(Parcel in) {
+            return new ApduList(in);
+        }
+
+        @Override
+        public ApduList[] newArray(int size) {
+            return new ApduList[size];
+        }
+    };
+
+    private ApduList(Parcel in) {
+        int count = in.readInt();
+
+        for (int i = 0 ; i < count ; i++) {
+
+            int length = in.readInt();
+            byte[] cmd = new byte[length];
+            in.readByteArray(cmd);
+            commands.add(cmd);
+        }
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(commands.size());
+
+        for (byte[] cmd : commands) {
+            dest.writeInt(cmd.length);
+            dest.writeByteArray(cmd);
+        }
+    }
+}
+
+
diff --git a/core/java/android/nfc/INfcAdapterExtras.aidl b/core/java/android/nfc/INfcAdapterExtras.aidl
index ab5c1a6..8677a50 100755
--- a/core/java/android/nfc/INfcAdapterExtras.aidl
+++ b/core/java/android/nfc/INfcAdapterExtras.aidl
@@ -16,8 +16,10 @@
 
 package android.nfc;
 
+import android.nfc.ApduList;
 import android.os.Bundle;
 
+
 /**
  * {@hide}
  */
@@ -26,5 +28,7 @@
     Bundle close();
     Bundle transceive(in byte[] data_in);
     int getCardEmulationRoute();
-    void setCardEmulationRoute(int route);    
+    void setCardEmulationRoute(int route);
+    void registerTearDownApdus(String packageName, in ApduList apdu);
+    void unregisterTearDownApdus(String packageName);
 }
diff --git a/core/java/android/os/Looper.java b/core/java/android/os/Looper.java
index 8204e3c..ccf642c 100644
--- a/core/java/android/os/Looper.java
+++ b/core/java/android/os/Looper.java
@@ -141,7 +141,8 @@
                     Log.wtf("Looper", "Thread identity changed from 0x"
                             + Long.toHexString(ident) + " to 0x"
                             + Long.toHexString(newIdent) + " while dispatching to "
-                            + msg.target + " " + msg.callback + " what=" + msg.what);
+                            + msg.target.getClass().getName() + " "
+                            + msg.callback + " what=" + msg.what);
                 }
                 
                 msg.recycle();
diff --git a/core/java/android/os/Process.java b/core/java/android/os/Process.java
index 0c6ab9e..2bfada0 100644
--- a/core/java/android/os/Process.java
+++ b/core/java/android/os/Process.java
@@ -95,7 +95,7 @@
      * Defines the UID/GID for the NFC service process.
      * @hide
      */
-    public static final int NFC_UID = 1022;
+    public static final int NFC_UID = 1025;
 
     /**
      * Defines the GID for the group that allows write access to the internal media storage.
diff --git a/core/java/android/os/RecoverySystem.java b/core/java/android/os/RecoverySystem.java
index 4991914..c1dd911 100644
--- a/core/java/android/os/RecoverySystem.java
+++ b/core/java/android/os/RecoverySystem.java
@@ -16,6 +16,11 @@
 
 package android.os;
 
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -37,9 +42,6 @@
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
-import android.content.Context;
-import android.util.Log;
-
 import org.apache.harmony.security.asn1.BerInputStream;
 import org.apache.harmony.security.pkcs7.ContentInfo;
 import org.apache.harmony.security.pkcs7.SignedData;
@@ -336,8 +338,21 @@
      * @throws IOException  if writing the recovery command file
      * fails, or if the reboot itself fails.
      */
-    public static void rebootWipeUserData(Context context)
-        throws IOException {
+    public static void rebootWipeUserData(Context context) throws IOException {
+        final ConditionVariable condition = new ConditionVariable();
+
+        Intent intent = new Intent("android.intent.action.MASTER_CLEAR_NOTIFICATION");
+        context.sendOrderedBroadcast(intent, android.Manifest.permission.MASTER_CLEAR,
+                new BroadcastReceiver() {
+                    @Override
+                    public void onReceive(Context context, Intent intent) {
+                        condition.open();
+                    }
+                }, null, 0, null, null);
+
+        // Block until the ordered broadcast has completed.
+        condition.block();
+
         bootCommand(context, "--wipe_data");
     }
 
diff --git a/core/java/android/speech/RecognitionService.java b/core/java/android/speech/RecognitionService.java
index 75a5ed5..32b2d8f 100644
--- a/core/java/android/speech/RecognitionService.java
+++ b/core/java/android/speech/RecognitionService.java
@@ -68,6 +68,8 @@
 
     private static final int MSG_CANCEL = 3;
 
+    private static final int MSG_RESET = 4;
+
     private final Handler mHandler = new Handler() {
         @Override
         public void handleMessage(Message msg) {
@@ -81,6 +83,10 @@
                     break;
                 case MSG_CANCEL:
                     dispatchCancel((IRecognitionListener) msg.obj);
+                    break;
+                case MSG_RESET:
+                    dispatchClearCallback();
+                    break;
             }
         }
     };
@@ -128,6 +134,10 @@
         }
     }
 
+    private void dispatchClearCallback() {
+        mCurrentCallback = null;
+    }
+
     private class StartListeningArgs {
         public final Intent mIntent;
 
@@ -241,7 +251,7 @@
          * @param error code is defined in {@link SpeechRecognizer}
          */
         public void error(int error) throws RemoteException {
-            mCurrentCallback = null;
+            Message.obtain(mHandler, MSG_RESET).sendToTarget();
             mListener.onError(error);
         }
 
@@ -278,7 +288,7 @@
          *        {@link SpeechRecognizer#RESULTS_RECOGNITION} as a parameter
          */
         public void results(Bundle results) throws RemoteException {
-            mCurrentCallback = null;
+            Message.obtain(mHandler, MSG_RESET).sendToTarget();
             mListener.onResults(results);
         }
 
diff --git a/core/java/android/text/util/Rfc822Tokenizer.java b/core/java/android/text/util/Rfc822Tokenizer.java
index 69cf93c..68334e4 100644
--- a/core/java/android/text/util/Rfc822Tokenizer.java
+++ b/core/java/android/text/util/Rfc822Tokenizer.java
@@ -256,7 +256,7 @@
                     if (c == '"') {
                         i++;
                         break;
-                    } else if (c == '\\') {
+                    } else if (c == '\\' && i + 1 < len) {
                         i += 2;
                     } else {
                         i++;
@@ -275,7 +275,7 @@
                     } else if (c == '(') {
                         level++;
                         i++;
-                    } else if (c == '\\') {
+                    } else if (c == '\\' && i + 1 < len) {
                         i += 2;
                     } else {
                         i++;
diff --git a/core/java/android/webkit/CacheManager.java b/core/java/android/webkit/CacheManager.java
index 3ce0730..e21a02e 100644
--- a/core/java/android/webkit/CacheManager.java
+++ b/core/java/android/webkit/CacheManager.java
@@ -857,6 +857,7 @@
         String cacheControl = headers.getCacheControl();
         if (cacheControl != null) {
             String[] controls = cacheControl.toLowerCase().split("[ ,;]");
+            boolean noCache = false;
             for (int i = 0; i < controls.length; i++) {
                 if (NO_STORE.equals(controls[i])) {
                     return null;
@@ -867,7 +868,12 @@
                 // can only be used in CACHE_MODE_CACHE_ONLY case
                 if (NO_CACHE.equals(controls[i])) {
                     ret.expires = 0;
-                } else if (controls[i].startsWith(MAX_AGE)) {
+                    noCache = true;
+                // if cache control = no-cache has been received, ignore max-age
+                // header, according to http spec:
+                // If a request includes the no-cache directive, it SHOULD NOT
+                // include min-fresh, max-stale, or max-age.
+                } else if (controls[i].startsWith(MAX_AGE) && !noCache) {
                     int separator = controls[i].indexOf('=');
                     if (separator < 0) {
                         separator = controls[i].indexOf(':');
diff --git a/core/jni/android_bluetooth_BluetoothSocket.cpp b/core/jni/android_bluetooth_BluetoothSocket.cpp
index b87f7c4..d09c4e9 100644
--- a/core/jni/android_bluetooth_BluetoothSocket.cpp
+++ b/core/jni/android_bluetooth_BluetoothSocket.cpp
@@ -448,7 +448,7 @@
 #ifdef HAVE_BLUETOOTH
     LOGV("%s", __FUNCTION__);
 
-    int ret;
+    int ret, total;
     jbyte *b;
     int sz;
     struct asocket *s = get_socketData(env, obj);
@@ -471,15 +471,21 @@
         return -1;
     }
 
-    ret = asocket_write(s, &b[offset], length, -1);
-    if (ret < 0) {
-        jniThrowIOException(env, errno);
-        env->ReleaseByteArrayElements(jb, b, JNI_ABORT);
-        return -1;
+    total = 0;
+    while (length > 0) {
+        ret = asocket_write(s, &b[offset], length, -1);
+        if (ret < 0) {
+            jniThrowIOException(env, errno);
+            env->ReleaseByteArrayElements(jb, b, JNI_ABORT);
+            return -1;
+        }
+        offset += ret;
+        total += ret;
+        length -= ret;
     }
 
     env->ReleaseByteArrayElements(jb, b, JNI_ABORT);  // no need to commit
-    return (jint)ret;
+    return (jint)total;
 
 #endif
     jniThrowIOException(env, ENOSYS);
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 0c9a2ef..2a4d1b2 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -57,6 +57,7 @@
     <protected-broadcast android:name="android.intent.action.NEW_OUTGOING_CALL" />
     <protected-broadcast android:name="android.intent.action.REBOOT" />
     <protected-broadcast android:name="android.intent.action.DOCK_EVENT" />
+    <protected-broadcast android:name="android.intent.action.MASTER_CLEAR_NOTIFICATION" />
 
     <protected-broadcast android:name="android.app.action.ENTER_CAR_MODE" />
     <protected-broadcast android:name="android.app.action.EXIT_CAR_MODE" />
@@ -1031,7 +1032,7 @@
     <permission android:name="android.permission.STOP_APP_SWITCHES"
         android:label="@string/permlab_stopAppSwitches"
         android:description="@string/permdesc_stopAppSwitches"
-        android:protectionLevel="signature" />
+        android:protectionLevel="signatureOrSystem" />
 
     <!-- Allows an application to retrieve the current state of keys and
          switches.  This is only for use by the system.-->
diff --git a/core/tests/coretests/src/android/content/pm/PackageHelperTests.java b/core/tests/coretests/src/android/content/pm/PackageHelperTests.java
new file mode 100644
index 0000000..27112a6
--- /dev/null
+++ b/core/tests/coretests/src/android/content/pm/PackageHelperTests.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2011 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.content.pm;
+
+import com.android.internal.content.PackageHelper;
+
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.storage.IMountService;
+import android.test.AndroidTestCase;
+import android.util.Log;
+
+public class PackageHelperTests extends AndroidTestCase {
+    private static final boolean localLOGV = true;
+    public static final String TAG = "PackageHelperTests";
+    protected final String PREFIX = "android.content.pm";
+    private IMountService mMs;
+    private String fullId;
+    private String fullId2;
+
+    private IMountService getMs() {
+        IBinder service = ServiceManager.getService("mount");
+        if (service != null) {
+            return IMountService.Stub.asInterface(service);
+        } else {
+            Log.e(TAG, "Can't get mount service");
+        }
+        return null;
+    }
+
+    private void cleanupContainers() throws RemoteException {
+        Log.d(TAG,"cleanUp");
+        IMountService ms = getMs();
+        String[] containers = ms.getSecureContainerList();
+        for (int i = 0; i < containers.length; i++) {
+            if (containers[i].startsWith(PREFIX)) {
+                Log.d(TAG,"cleaing up "+containers[i]);
+                ms.destroySecureContainer(containers[i], true);
+            }
+        }
+    }
+
+    void failStr(String errMsg) {
+        Log.w(TAG, "errMsg=" + errMsg);
+        fail(errMsg);
+    }
+
+    void failStr(Exception e) {
+        failStr(e.getMessage());
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        if (localLOGV) Log.i(TAG, "Cleaning out old test containers");
+        cleanupContainers();
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+        if (localLOGV) Log.i(TAG, "Cleaning out old test containers");
+        cleanupContainers();
+    }
+
+    public void testMountAndPullSdCard() {
+        try {
+            fullId = PREFIX;
+            fullId2 = PackageHelper.createSdDir(1024, fullId, "none", android.os.Process.myUid());
+
+            Log.d(TAG,PackageHelper.getSdDir(fullId));
+            PackageHelper.unMountSdDir(fullId);
+
+            Runnable r1 = getMountRunnable();
+            Runnable r2 = getDestroyRunnable();
+            Thread thread = new Thread(r1);
+            Thread thread2 = new Thread(r2);
+            thread2.start();
+            thread.start();
+        } catch (Exception e) {
+            failStr(e);
+        }
+    }
+
+    public Runnable getMountRunnable() {
+        Runnable r = new Runnable () {
+            public void run () {
+                try {
+                    Thread.sleep(5);
+                    String path = PackageHelper.mountSdDir(fullId, "none",
+                            android.os.Process.myUid());
+                    Log.e(TAG, "mount done " + path);
+                } catch (IllegalArgumentException iae) {
+                    throw iae;
+                } catch (Throwable t) {
+                    Log.e(TAG, "mount failed", t);
+                }
+            }
+        };
+        return r;
+    }
+
+    public Runnable getDestroyRunnable() {
+        Runnable r = new Runnable () {
+            public void run () {
+                try {
+                    PackageHelper.destroySdDir(fullId);
+                    Log.e(TAG, "destroy done: " + fullId);
+                } catch (Throwable t) {
+                    Log.e(TAG, "destroy failed", t);
+                }
+            }
+        };
+        return r;
+    }
+}
diff --git a/core/tests/coretests/src/android/text/TextUtilsTest.java b/core/tests/coretests/src/android/text/TextUtilsTest.java
index e111662..79d57f1 100644
--- a/core/tests/coretests/src/android/text/TextUtilsTest.java
+++ b/core/tests/coretests/src/android/text/TextUtilsTest.java
@@ -255,6 +255,23 @@
         assertEquals("Foo Bar", tokens[0].getAddress());
     }
 
+    @SmallTest
+    public void testRfc822FindToken() {
+        Rfc822Tokenizer tokenizer = new Rfc822Tokenizer();
+        //                0           1         2           3         4
+        //                0 1234 56789012345678901234 5678 90123456789012345
+        String address = "\"Foo\" <foo@google.com>, \"Bar\" <bar@google.com>";
+        assertEquals(0, tokenizer.findTokenStart(address, 21));
+        assertEquals(22, tokenizer.findTokenEnd(address, 21));
+        assertEquals(24, tokenizer.findTokenStart(address, 25));
+        assertEquals(46, tokenizer.findTokenEnd(address, 25));
+    }
+
+    @SmallTest
+    public void testRfc822FindTokenWithError() {
+        assertEquals(9, new Rfc822Tokenizer().findTokenEnd("\"Foo Bar\\", 0));
+    }
+
     @LargeTest
     public void testEllipsize() {
         CharSequence s1 = "The quick brown fox jumps over \u00FEhe lazy dog.";
diff --git a/core/tests/overlaytests/Android.mk b/core/tests/overlaytests/Android.mk
new file mode 100644
index 0000000..bf69442
--- /dev/null
+++ b/core/tests/overlaytests/Android.mk
@@ -0,0 +1,4 @@
+# Dummy makefile to halt recursive directory traversal.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
diff --git a/core/tests/overlaytests/OverlayTest/Android.mk b/core/tests/overlaytests/OverlayTest/Android.mk
new file mode 100644
index 0000000..f7f67f6
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTest/Android.mk
@@ -0,0 +1,10 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_PACKAGE_NAME := OverlayTest
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+include $(BUILD_PACKAGE)
diff --git a/core/tests/overlaytests/OverlayTest/AndroidManifest.xml b/core/tests/overlaytests/OverlayTest/AndroidManifest.xml
new file mode 100644
index 0000000..9edba12
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTest/AndroidManifest.xml
@@ -0,0 +1,10 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.overlaytest">
+    <uses-permission android:name="android.permission.RUN_INSTRUMENTATION"/>
+    <application>
+        <uses-library android:name="android.test.runner"/>
+    </application>
+    <instrumentation android:name="android.test.InstrumentationTestRunner"
+        android:targetPackage="com.android.overlaytest"
+        android:label="Runtime resource overlay tests"/>
+</manifest>
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java
new file mode 100644
index 0000000..85b49ce
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java
@@ -0,0 +1,118 @@
+package com.android.overlaytest;
+
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.test.AndroidTestCase;
+import java.io.InputStream;
+import java.util.Locale;
+
+public abstract class OverlayBaseTest extends AndroidTestCase {
+    private Resources mResources;
+    protected boolean mWithOverlay; // will be set by subclasses
+
+    protected void setUp() {
+        mResources = getContext().getResources();
+    }
+
+    private int calculateRawResourceChecksum(int resId) throws Throwable {
+        InputStream input = null;
+        try {
+            input = mResources.openRawResource(resId);
+            int ch, checksum = 0;
+            while ((ch = input.read()) != -1) {
+                checksum = (checksum + ch) % 0xffddbb00;
+            }
+            return checksum;
+        } finally {
+            input.close();
+        }
+    }
+
+    private void setLocale(String code) {
+        Locale locale = new Locale(code);
+        Locale.setDefault(locale);
+        Configuration config = new Configuration();
+        config.locale = locale;
+        mResources.updateConfiguration(config, mResources.getDisplayMetrics());
+    }
+
+    private void assertResource(int resId, boolean ewo, boolean ew) throws Throwable {
+        boolean expected = mWithOverlay ? ew : ewo;
+        boolean actual = mResources.getBoolean(resId);
+        assertEquals(expected, actual);
+    }
+
+    private void assertResource(int resId, String ewo, String ew) throws Throwable {
+        String expected = mWithOverlay ? ew : ewo;
+        String actual = mResources.getString(resId);
+        assertEquals(expected, actual);
+    }
+
+    private void assertResource(int resId, int[] ewo, int[] ew) throws Throwable {
+        int[] expected = mWithOverlay ? ew : ewo;
+        int[] actual = mResources.getIntArray(resId);
+        assertEquals("length:", expected.length, actual.length);
+        for (int i = 0; i < actual.length; ++i) {
+            assertEquals("index " + i + ":", actual[i], expected[i]);
+        }
+    }
+
+    public void testBooleanOverlay() throws Throwable {
+        // config_automatic_brightness_available has overlay (default config)
+        final int resId = com.android.internal.R.bool.config_automatic_brightness_available;
+        assertResource(resId, false, true);
+    }
+
+    public void testBoolean() throws Throwable {
+        // config_bypass_keyguard_if_slider_open has no overlay
+        final int resId = com.android.internal.R.bool.config_bypass_keyguard_if_slider_open;
+        assertResource(resId, true, true);
+    }
+
+    public void testStringOverlay() throws Throwable {
+        // phoneTypeCar has an overlay (default config), which shouldn't shadow
+        // the Swedish translation
+        final int resId = com.android.internal.R.string.phoneTypeCar;
+        setLocale("sv_SE");
+        assertResource(resId, "Bil", "Bil");
+    }
+
+    public void testStringSwedishOverlay() throws Throwable {
+        // phoneTypeWork has overlay (no default config, only for lang=sv)
+        final int resId = com.android.internal.R.string.phoneTypeWork;
+        setLocale("en_US");
+        assertResource(resId, "Work", "Work");
+        setLocale("sv_SE");
+        assertResource(resId, "Arbete", "Jobb");
+    }
+
+    public void testString() throws Throwable {
+        // phoneTypeHome has no overlay
+        final int resId = com.android.internal.R.string.phoneTypeHome;
+        setLocale("en_US");
+        assertResource(resId, "Home", "Home");
+        setLocale("sv_SE");
+        assertResource(resId, "Hem", "Hem");
+    }
+
+    public void testIntegerArrayOverlay() throws Throwable {
+        // config_scrollBarrierVibePattern has overlay (default config)
+        final int resId = com.android.internal.R.array.config_scrollBarrierVibePattern;
+        assertResource(resId, new int[]{0, 15, 10, 10}, new int[]{100, 200, 300});
+    }
+
+    public void testIntegerArray() throws Throwable {
+        // config_virtualKeyVibePattern has no overlay
+        final int resId = com.android.internal.R.array.config_virtualKeyVibePattern;
+        final int[] expected = {0, 10, 20, 30};
+        assertResource(resId, expected, expected);
+    }
+
+    public void testAsset() throws Throwable {
+        // drawable/default_background.jpg has overlay (default config)
+        final int resId = com.android.internal.R.drawable.default_wallpaper;
+        int actual = calculateRawResourceChecksum(resId);
+        int expected = mWithOverlay ? 0x000051da : 0x0014ebce;
+        assertEquals(expected, actual);
+    }
+}
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java
new file mode 100644
index 0000000..1292d03
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java
@@ -0,0 +1,7 @@
+package com.android.overlaytest;
+
+public class WithOverlayTest extends OverlayBaseTest {
+    public WithOverlayTest() {
+        mWithOverlay = true;
+    }
+}
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java
new file mode 100644
index 0000000..630ff8f
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java
@@ -0,0 +1,7 @@
+package com.android.overlaytest;
+
+public class WithoutOverlayTest extends OverlayBaseTest {
+    public WithoutOverlayTest() {
+        mWithOverlay = false;
+    }
+}
diff --git a/core/tests/overlaytests/OverlayTestOverlay/Android.mk b/core/tests/overlaytests/OverlayTestOverlay/Android.mk
new file mode 100644
index 0000000..cf32c9f
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTestOverlay/Android.mk
@@ -0,0 +1,14 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_SDK_VERSION := current
+
+LOCAL_PACKAGE_NAME := com.android.overlaytest.overlay
+
+LOCAL_AAPT_FLAGS := -o
+
+include $(BUILD_PACKAGE)
diff --git a/core/tests/overlaytests/OverlayTestOverlay/AndroidManifest.xml b/core/tests/overlaytests/OverlayTestOverlay/AndroidManifest.xml
new file mode 100644
index 0000000..bcbb0d1
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTestOverlay/AndroidManifest.xml
@@ -0,0 +1,6 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.overlaytest.overlay"
+        android:versionCode="1"
+        android:versionName="1.0">
+    <overlay-package android:name="android"/>
+</manifest>
diff --git a/core/tests/overlaytests/OverlayTestOverlay/res/drawable/default_wallpaper.jpg b/core/tests/overlaytests/OverlayTestOverlay/res/drawable/default_wallpaper.jpg
new file mode 100644
index 0000000..0d944d0
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTestOverlay/res/drawable/default_wallpaper.jpg
Binary files differ
diff --git a/core/tests/overlaytests/OverlayTestOverlay/res/values-sv/config.xml b/core/tests/overlaytests/OverlayTestOverlay/res/values-sv/config.xml
new file mode 100644
index 0000000..bc52367
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTestOverlay/res/values-sv/config.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="phoneTypeWork">Jobb</string>
+</resources>
diff --git a/core/tests/overlaytests/OverlayTestOverlay/res/values/config.xml b/core/tests/overlaytests/OverlayTestOverlay/res/values/config.xml
new file mode 100644
index 0000000..794f475
--- /dev/null
+++ b/core/tests/overlaytests/OverlayTestOverlay/res/values/config.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <bool name="config_automatic_brightness_available">true</bool>
+    <string name="phoneTypeCar">Automobile</string>
+    <integer-array name="config_scrollBarrierVibePattern">
+        <item>100</item>
+        <item>200</item>
+        <item>300</item>
+    </integer-array>
+    <!-- The following integer does not exist in the original package. Idmap
+         generation should therefore ignore it. -->
+    <integer name="integer_not_in_original_package">0</integer>
+</resources>
diff --git a/core/tests/overlaytests/README b/core/tests/overlaytests/README
new file mode 100644
index 0000000..4b3e6f2
--- /dev/null
+++ b/core/tests/overlaytests/README
@@ -0,0 +1,15 @@
+Unit tests for runtime resource overlay
+=======================================
+
+As of this writing, runtime resource overlay is only triggered for
+/system/framework/framework-res.apk. Because of this, installation of
+overlay packages require the Android platform be rebooted. However, the
+regular unit tests (triggered via development/testrunner/runtest.py)
+cannot handle reboots. As a workaround, this directory contains a shell
+script which will trigger the tests in a non-standard way.
+
+Once runtime resource overlay may be applied to applications, the tests
+in this directory should be moved to core/tests/coretests. Also, by
+applying runtime resource overlay to a dedicated test application, the
+test cases would not need to assume default values for non-overlaid
+resources.
diff --git a/core/tests/overlaytests/runtests.sh b/core/tests/overlaytests/runtests.sh
new file mode 100755
index 0000000..0ad9efb
--- /dev/null
+++ b/core/tests/overlaytests/runtests.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+
+adb="adb"
+if [[ $# -gt 0 ]]; then
+	adb="adb $*" # for setting -e, -d or -s <serial>
+fi
+
+function atexit()
+{
+	local retval=$?
+
+	if [[ $retval -eq 0 ]]; then
+		rm $log
+	else
+		echo "There were errors, please check log at $log"
+	fi
+}
+
+log=$(mktemp)
+trap "atexit" EXIT
+failures=0
+
+function compile_module()
+{
+	local android_mk="$1"
+
+	echo "Compiling .${android_mk:${#PWD}}"
+	ONE_SHOT_MAKEFILE="$android_mk" make -C "../../../../../" files | tee -a $log
+	if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
+		exit 1
+	fi
+}
+
+function wait_for_boot_completed()
+{
+	echo "Rebooting device"
+	$adb wait-for-device logcat -c
+	$adb wait-for-device logcat | grep -m 1 -e 'PowerManagerService.*bootCompleted' >/dev/null
+}
+
+function disable_overlay()
+{
+	echo "Disabling overlay"
+	$adb shell rm /vendor/overlay/framework/framework-res.apk
+	$adb shell rm /data/resource-cache/vendor@overlay@framework@framework-res.apk@idmap
+}
+
+function enable_overlay()
+{
+	echo "Enabling overlay"
+	$adb shell ln -s /data/app/com.android.overlaytest.overlay.apk /vendor/overlay/framework/framework-res.apk
+}
+
+function instrument()
+{
+	local class="$1"
+
+	echo "Instrumenting $class"
+	$adb shell am instrument -w -e class $class com.android.overlaytest/android.test.InstrumentationTestRunner | tee -a $log
+}
+
+function sync()
+{
+	echo "Syncing to device"
+	$adb remount | tee -a $log
+	$adb sync data | tee -a $log
+}
+
+# build and sync
+compile_module "$PWD/OverlayTest/Android.mk"
+compile_module "$PWD/OverlayTestOverlay/Android.mk"
+sync
+
+# instrument test (without overlay)
+$adb shell stop
+disable_overlay
+$adb shell start
+wait_for_boot_completed
+instrument "com.android.overlaytest.WithoutOverlayTest"
+
+# instrument test (with overlay)
+$adb shell stop
+enable_overlay
+$adb shell start
+wait_for_boot_completed
+instrument "com.android.overlaytest.WithOverlayTest"
+
+# cleanup
+exit $(grep -c -e '^FAILURES' $log)
diff --git a/graphics/java/android/graphics/YuvImage.java b/graphics/java/android/graphics/YuvImage.java
index 9368da6..af3f276 100644
--- a/graphics/java/android/graphics/YuvImage.java
+++ b/graphics/java/android/graphics/YuvImage.java
@@ -36,7 +36,7 @@
     private final static int WORKING_COMPRESS_STORAGE = 4096;
 
    /**
-     * The YUV format as defined in {@link PixelFormat}.
+     * The YUV format as defined in {@link ImageFormat}.
      */
     private int mFormat;
 
@@ -67,7 +67,7 @@
      *
      * @param yuv     The YUV data. In the case of more than one image plane, all the planes must be
      *                concatenated into a single byte array.
-     * @param format  The YUV data format as defined in {@link PixelFormat}.
+     * @param format  The YUV data format as defined in {@link ImageFormat}.
      * @param width   The width of the YuvImage.
      * @param height  The height of the YuvImage.
      * @param strides (Optional) Row bytes of each image plane. If yuv contains padding, the stride
@@ -152,7 +152,7 @@
     }
 
     /**
-     * @return the YUV format as defined in {@link PixelFormat}.
+     * @return the YUV format as defined in {@link ImageFormat}.
      */
     public int getYuvFormat() {
         return mFormat;
diff --git a/include/utils/AssetManager.h b/include/utils/AssetManager.h
index 9e2bf37..a8c7ddb 100644
--- a/include/utils/AssetManager.h
+++ b/include/utils/AssetManager.h
@@ -222,6 +222,7 @@
     {
         String8 path;
         FileType type;
+        String8 idmap;
     };
 
     Asset* openInPathLocked(const char* fileName, AccessMode mode,
@@ -262,6 +263,16 @@
     void setLocaleLocked(const char* locale);
     void updateResourceParamsLocked() const;
 
+    bool createIdmapFileLocked(const String8& originalPath, const String8& overlayPath,
+                               const String8& idmapPath);
+
+    bool isIdmapStaleLocked(const String8& originalPath, const String8& overlayPath,
+                            const String8& idmapPath);
+
+    Asset* openIdmapLocked(const struct asset_path& ap) const;
+
+    bool getZipEntryCrcLocked(const String8& zipPath, const char* entryFilename, uint32_t* pCrc);
+
     class SharedZip : public RefBase {
     public:
         static sp<SharedZip> get(const String8& path);
diff --git a/include/utils/ResourceTypes.h b/include/utils/ResourceTypes.h
index 6227f3e..24e72e9 100644
--- a/include/utils/ResourceTypes.h
+++ b/include/utils/ResourceTypes.h
@@ -1735,9 +1735,9 @@
     ~ResTable();
 
     status_t add(const void* data, size_t size, void* cookie,
-                 bool copyData=false);
+                 bool copyData=false, const void* idmap = NULL);
     status_t add(Asset* asset, void* cookie,
-                 bool copyData=false);
+                 bool copyData=false, const void* idmap = NULL);
     status_t add(ResTable* src);
 
     status_t getError() const;
@@ -1983,6 +1983,24 @@
 
     void getLocales(Vector<String8>* locales) const;
 
+    // Generate an idmap.
+    //
+    // Return value: on success: NO_ERROR; caller is responsible for free-ing
+    // outData (using free(3)). On failure, any status_t value other than
+    // NO_ERROR; the caller should not free outData.
+    status_t createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
+                         void** outData, size_t* outSize) const;
+
+    enum {
+        IDMAP_HEADER_SIZE_BYTES = 3 * sizeof(uint32_t),
+    };
+    // Retrieve idmap meta-data.
+    //
+    // This function only requires the idmap header (the first
+    // IDMAP_HEADER_SIZE_BYTES) bytes of an idmap file.
+    static bool getIdmapInfo(const void* idmap, size_t size,
+                             uint32_t* pOriginalCrc, uint32_t* pOverlayCrc);
+
 #ifndef HAVE_ANDROID_OS
     void print(bool inclValues) const;
     static String8 normalizeForOutput(const char* input);
@@ -1996,7 +2014,7 @@
     struct bag_set;
 
     status_t add(const void* data, size_t size, void* cookie,
-                 Asset* asset, bool copyData);
+                 Asset* asset, bool copyData, const Asset* idmap);
 
     ssize_t getResourcePackageIndex(uint32_t resID) const;
     ssize_t getEntry(
@@ -2005,7 +2023,7 @@
         const ResTable_type** outType, const ResTable_entry** outEntry,
         const Type** outTypeClass) const;
     status_t parsePackage(
-        const ResTable_package* const pkg, const Header* const header);
+        const ResTable_package* const pkg, const Header* const header, uint32_t idmap_id);
 
     void print_value(const Package* pkg, const Res_value& value) const;
     
diff --git a/libs/usb/src/com/android/future/usb/UsbManager.java b/libs/usb/src/com/android/future/usb/UsbManager.java
index d424b63..91d8e8a 100644
--- a/libs/usb/src/com/android/future/usb/UsbManager.java
+++ b/libs/usb/src/com/android/future/usb/UsbManager.java
@@ -28,7 +28,7 @@
 import android.util.Log;
 
 /**
- * This class allows you to access the state of USB, both in host and device mode.
+ * This is a wrapper class for the USB Manager to support USB accessories.
  *
  * <p>You can obtain an instance of this class by calling {@link #getInstance}
  *
@@ -141,7 +141,7 @@
     /**
      * Returns true if the caller has permission to access the accessory.
      * Permission might have been granted temporarily via
-     * {@link #requestPermission(android.hardware.usb.UsbAccessory} or
+     * {@link #requestPermission} or
      * by the user choosing the caller as the default application for the accessory.
      *
      * @param accessory to check permissions for
diff --git a/libs/utils/AssetManager.cpp b/libs/utils/AssetManager.cpp
index e09e755..13004cd 100644
--- a/libs/utils/AssetManager.cpp
+++ b/libs/utils/AssetManager.cpp
@@ -36,6 +36,19 @@
 #include <dirent.h>
 #include <errno.h>
 #include <assert.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#ifndef TEMP_FAILURE_RETRY
+/* Used to retry syscalls that can return EINTR. */
+#define TEMP_FAILURE_RETRY(exp) ({         \
+    typeof (exp) _rc;                      \
+    do {                                   \
+        _rc = (exp);                       \
+    } while (_rc == -1 && errno == EINTR); \
+    _rc; })
+#endif
 
 using namespace android;
 
@@ -48,6 +61,7 @@
 static const char* kAssetsRoot = "assets";
 static const char* kAppZipName = NULL; //"classes.jar";
 static const char* kSystemAssets = "framework/framework-res.apk";
+static const char* kIdmapCacheDir = "resource-cache";
 
 static const char* kExcludeExtension = ".EXCLUDE";
 
@@ -55,6 +69,35 @@
 
 static volatile int32_t gCount = 0;
 
+namespace {
+    // Transform string /a/b/c.apk to /data/resource-cache/a@b@c.apk@idmap
+    String8 idmapPathForPackagePath(const String8& pkgPath)
+    {
+        const char* root = getenv("ANDROID_DATA");
+        LOG_ALWAYS_FATAL_IF(root == NULL, "ANDROID_DATA not set");
+        String8 path(root);
+        path.appendPath(kIdmapCacheDir);
+
+        char buf[256]; // 256 chars should be enough for anyone...
+        strncpy(buf, pkgPath.string(), 255);
+        buf[255] = '\0';
+        char* filename = buf;
+        while (*filename && *filename == '/') {
+            ++filename;
+        }
+        char* p = filename;
+        while (*p) {
+            if (*p == '/') {
+                *p = '@';
+            }
+            ++p;
+        }
+        path.appendPath(filename);
+        path.append("@idmap");
+
+        return path;
+    }
+}
 
 /*
  * ===========================================================================
@@ -122,7 +165,7 @@
             return true;
         }
     }
-    
+
     LOGV("In %p Asset %s path: %s", this,
          ap.type == kFileTypeDirectory ? "dir" : "zip", ap.path.string());
 
@@ -133,9 +176,181 @@
         *cookie = (void*)mAssetPaths.size();
     }
 
+    // add overlay packages for /system/framework; apps are handled by the
+    // (Java) package manager
+    if (strncmp(path.string(), "/system/framework/", 18) == 0) {
+        // When there is an environment variable for /vendor, this
+        // should be changed to something similar to how ANDROID_ROOT
+        // and ANDROID_DATA are used in this file.
+        String8 overlayPath("/vendor/overlay/framework/");
+        overlayPath.append(path.getPathLeaf());
+        if (TEMP_FAILURE_RETRY(access(overlayPath.string(), R_OK)) == 0) {
+            asset_path oap;
+            oap.path = overlayPath;
+            oap.type = ::getFileType(overlayPath.string());
+            bool addOverlay = (oap.type == kFileTypeRegular); // only .apks supported as overlay
+            if (addOverlay) {
+                oap.idmap = idmapPathForPackagePath(overlayPath);
+
+                if (isIdmapStaleLocked(ap.path, oap.path, oap.idmap)) {
+                    addOverlay = createIdmapFileLocked(ap.path, oap.path, oap.idmap);
+                }
+            }
+            if (addOverlay) {
+                mAssetPaths.add(oap);
+            } else {
+                LOGW("failed to add overlay package %s\n", overlayPath.string());
+            }
+        }
+    }
+
     return true;
 }
 
+bool AssetManager::isIdmapStaleLocked(const String8& originalPath, const String8& overlayPath,
+                                      const String8& idmapPath)
+{
+    struct stat st;
+    if (TEMP_FAILURE_RETRY(stat(idmapPath.string(), &st)) == -1) {
+        if (errno == ENOENT) {
+            return true; // non-existing idmap is always stale
+        } else {
+            LOGW("failed to stat file %s: %s\n", idmapPath.string(), strerror(errno));
+            return false;
+        }
+    }
+    if (st.st_size < ResTable::IDMAP_HEADER_SIZE_BYTES) {
+        LOGW("file %s has unexpectedly small size=%zd\n", idmapPath.string(), (size_t)st.st_size);
+        return false;
+    }
+    int fd = TEMP_FAILURE_RETRY(::open(idmapPath.string(), O_RDONLY));
+    if (fd == -1) {
+        LOGW("failed to open file %s: %s\n", idmapPath.string(), strerror(errno));
+        return false;
+    }
+    char buf[ResTable::IDMAP_HEADER_SIZE_BYTES];
+    ssize_t bytesLeft = ResTable::IDMAP_HEADER_SIZE_BYTES;
+    for (;;) {
+        ssize_t r = TEMP_FAILURE_RETRY(read(fd, buf + ResTable::IDMAP_HEADER_SIZE_BYTES - bytesLeft,
+                                            bytesLeft));
+        if (r < 0) {
+            TEMP_FAILURE_RETRY(close(fd));
+            return false;
+        }
+        bytesLeft -= r;
+        if (bytesLeft == 0) {
+            break;
+        }
+    }
+    TEMP_FAILURE_RETRY(close(fd));
+
+    uint32_t cachedOriginalCrc, cachedOverlayCrc;
+    if (!ResTable::getIdmapInfo(buf, ResTable::IDMAP_HEADER_SIZE_BYTES,
+                                &cachedOriginalCrc, &cachedOverlayCrc)) {
+        return false;
+    }
+
+    uint32_t actualOriginalCrc, actualOverlayCrc;
+    if (!getZipEntryCrcLocked(originalPath, "resources.arsc", &actualOriginalCrc)) {
+        return false;
+    }
+    if (!getZipEntryCrcLocked(overlayPath, "resources.arsc", &actualOverlayCrc)) {
+        return false;
+    }
+    return cachedOriginalCrc != actualOriginalCrc || cachedOverlayCrc != actualOverlayCrc;
+}
+
+bool AssetManager::getZipEntryCrcLocked(const String8& zipPath, const char* entryFilename,
+                                        uint32_t* pCrc)
+{
+    asset_path ap;
+    ap.path = zipPath;
+    const ZipFileRO* zip = getZipFileLocked(ap);
+    if (zip == NULL) {
+        return false;
+    }
+    const ZipEntryRO entry = zip->findEntryByName(entryFilename);
+    if (entry == NULL) {
+        return false;
+    }
+    if (!zip->getEntryInfo(entry, NULL, NULL, NULL, NULL, NULL, (long*)pCrc)) {
+        return false;
+    }
+    return true;
+}
+
+bool AssetManager::createIdmapFileLocked(const String8& originalPath, const String8& overlayPath,
+                                         const String8& idmapPath)
+{
+    LOGD("%s: originalPath=%s overlayPath=%s idmapPath=%s\n",
+         __FUNCTION__, originalPath.string(), overlayPath.string(), idmapPath.string());
+    ResTable tables[2];
+    const String8* paths[2] = { &originalPath, &overlayPath };
+    uint32_t originalCrc, overlayCrc;
+    bool retval = false;
+    ssize_t offset = 0;
+    int fd = 0;
+    uint32_t* data = NULL;
+    size_t size;
+
+    for (int i = 0; i < 2; ++i) {
+        asset_path ap;
+        ap.type = kFileTypeRegular;
+        ap.path = *paths[i];
+        Asset* ass = openNonAssetInPathLocked("resources.arsc", Asset::ACCESS_BUFFER, ap);
+        if (ass == NULL) {
+            LOGW("failed to find resources.arsc in %s\n", ap.path.string());
+            goto error;
+        }
+        tables[i].add(ass, (void*)1, false);
+    }
+
+    if (!getZipEntryCrcLocked(originalPath, "resources.arsc", &originalCrc)) {
+        LOGW("failed to retrieve crc for resources.arsc in %s\n", originalPath.string());
+        goto error;
+    }
+    if (!getZipEntryCrcLocked(overlayPath, "resources.arsc", &overlayCrc)) {
+        LOGW("failed to retrieve crc for resources.arsc in %s\n", overlayPath.string());
+        goto error;
+    }
+
+    if (tables[0].createIdmap(tables[1], originalCrc, overlayCrc,
+                              (void**)&data, &size) != NO_ERROR) {
+        LOGW("failed to generate idmap data for file %s\n", idmapPath.string());
+        goto error;
+    }
+
+    // This should be abstracted (eg replaced by a stand-alone
+    // application like dexopt, triggered by something equivalent to
+    // installd).
+    fd = TEMP_FAILURE_RETRY(::open(idmapPath.string(), O_WRONLY | O_CREAT | O_TRUNC, 0644));
+    if (fd == -1) {
+        LOGW("failed to write idmap file %s (open: %s)\n", idmapPath.string(), strerror(errno));
+        goto error_free;
+    }
+    for (;;) {
+        ssize_t written = TEMP_FAILURE_RETRY(write(fd, data + offset, size));
+        if (written < 0) {
+            LOGW("failed to write idmap file %s (write: %s)\n", idmapPath.string(),
+                 strerror(errno));
+            goto error_close;
+        }
+        size -= (size_t)written;
+        offset += written;
+        if (size == 0) {
+            break;
+        }
+    }
+
+    retval = true;
+error_close:
+    TEMP_FAILURE_RETRY(close(fd));
+error_free:
+    free(data);
+error:
+    return retval;
+}
+
 bool AssetManager::addDefaultAssets()
 {
     const char* root = getenv("ANDROID_ROOT");
@@ -404,6 +619,7 @@
         ResTable* sharedRes = NULL;
         bool shared = true;
         const asset_path& ap = mAssetPaths.itemAt(i);
+        Asset* idmap = openIdmapLocked(ap);
         LOGV("Looking for resource asset in '%s'\n", ap.path.string());
         if (ap.type != kFileTypeDirectory) {
             if (i == 0) {
@@ -433,7 +649,7 @@
                     // can quickly copy it out for others.
                     LOGV("Creating shared resources for %s", ap.path.string());
                     sharedRes = new ResTable();
-                    sharedRes->add(ass, (void*)(i+1), false);
+                    sharedRes->add(ass, (void*)(i+1), false, idmap);
                     sharedRes = const_cast<AssetManager*>(this)->
                         mZipSet.setZipResourceTable(ap.path, sharedRes);
                 }
@@ -457,7 +673,7 @@
                 rt->add(sharedRes);
             } else {
                 LOGV("Parsing resources for %s", ap.path.string());
-                rt->add(ass, (void*)(i+1), !shared);
+                rt->add(ass, (void*)(i+1), !shared, idmap);
             }
 
             if (!shared) {
@@ -498,6 +714,21 @@
     res->setParameters(mConfig);
 }
 
+Asset* AssetManager::openIdmapLocked(const struct asset_path& ap) const
+{
+    Asset* ass = NULL;
+    if (ap.idmap.size() != 0) {
+        ass = const_cast<AssetManager*>(this)->
+            openAssetFromFileLocked(ap.idmap, Asset::ACCESS_BUFFER);
+        if (ass) {
+            LOGV("loading idmap %s\n", ap.idmap.string());
+        } else {
+            LOGW("failed to load idmap %s\n", ap.idmap.string());
+        }
+    }
+    return ass;
+}
+
 const ResTable& AssetManager::getResources(bool required) const
 {
     const ResTable* rt = getResTable(required);
diff --git a/libs/utils/README b/libs/utils/README
index 36a706d..01741e0 100644
--- a/libs/utils/README
+++ b/libs/utils/README
@@ -1,4 +1,6 @@
 Android Utility Function Library
+================================
+
 
 If you need a feature that is native to Linux but not present on other
 platforms, construct a platform-dependent implementation that shares
@@ -12,3 +14,276 @@
 layer.  The goal is to provide an optimized solution for Linux with
 reasonable implementations for other platforms.
 
+
+
+Resource overlay
+================
+
+
+Introduction
+------------
+
+Overlay packages are special .apk files which provide no code but
+additional resource values (and possibly new configurations) for
+resources in other packages. When an application requests resources,
+the system will return values from either the application's original
+package or any associated overlay package. Any redirection is completely
+transparent to the calling application.
+
+Resource values have the following precedence table, listed in
+descending precedence.
+
+ * overlay package, matching config (eg res/values-en-land)
+
+ * original package, matching config
+
+ * overlay package, no config (eg res/values)
+
+ * original package, no config
+
+During compilation, overlay packages are differentiated from regular
+packages by passing the -o flag to aapt.
+
+
+Background
+----------
+
+This section provides generic background material on resources in
+Android.
+
+
+How resources are bundled in .apk files
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Android .apk files are .zip files, usually housing .dex code,
+certificates and resources, though packages containing resources but
+no code are possible. Resources can be divided into the following
+categories; a `configuration' indicates a set of phone language, display
+density, network operator, etc.
+
+ * assets: uncompressed, raw files packaged as part of an .apk and
+           explicitly referenced by filename. These files are
+           independent of configuration.
+
+ * res/drawable: bitmap or xml graphics. Each file may have different
+                 values depending on configuration.
+
+ * res/values: integers, strings, etc. Each resource may have different
+               values depending on configuration.
+
+Resource meta information and information proper is stored in a binary
+format in a named file resources.arsc, bundled as part of the .apk.
+
+Resource IDs and lookup
+~~~~~~~~~~~~~~~~~~~~~~~
+During compilation, the aapt tool gathers application resources and
+generates a resources.arsc file. Each resource name is assigned an
+integer ID 0xppttiii (translated to a symbolic name via R.java), where
+
+ * pp: corresponds to the package namespace (details below).
+
+ * tt: corresponds to the resource type (string, int, etc). Every
+       resource of the same type within the same package has the same
+       tt value, but depending on available types, the actual numerical
+       value may be different between packages.
+
+ * iiii: sequential number, assigned in the order resources are found.
+
+Resource values are specified paired with a set of configuration
+constraints (the default being the empty set), eg res/values-sv-port
+which imposes restrictions on language (Swedish) and display orientation
+(portrait). During lookup, every constraint set is matched against the
+current configuration, and the value corresponding to the best matching
+constraint set is returned (ResourceTypes.{h,cpp}).
+
+Parsing of resources.arsc is handled by ResourceTypes.cpp; this utility
+is governed by AssetManager.cpp, which tracks loaded resources per
+process.
+
+Assets are looked up by path and filename in AssetManager.cpp. The path
+to resources in res/drawable are located by ResourceTypes.cpp and then
+handled like assets by AssetManager.cpp. Other resources are handled
+solely by ResourceTypes.cpp.
+
+Package ID as namespace
+~~~~~~~~~~~~~~~~~~~~~~~
+The pp part of a resource ID defines a namespace. Android currently
+defines two namespaces:
+
+ * 0x01: system resources (pre-installed in framework-res.apk)
+
+ * 0x7f: application resources (bundled in the application .apk)
+
+ResourceTypes.cpp supports package IDs between 0x01 and 0x7f
+(inclusive); values outside this range are invalid.
+
+Each running (Dalvik) process is assigned a unique instance of
+AssetManager, which in turn keeps a forest structure of loaded
+resource.arsc files. Normally, this forest is structured as follows,
+where mPackageMap is the internal vector employed in ResourceTypes.cpp.
+
+mPackageMap[0x00] -> system package
+mPackageMap[0x01] -> NULL
+mPackageMap[0x02] -> NULL
+...
+mPackageMap[0x7f - 2] -> NULL
+mPackageMap[0x7f - 1] -> application package
+
+
+
+The resource overlay extension
+------------------------------
+
+The resource overlay mechanism aims to (partly) shadow and extend
+existing resources with new values for defined and new configurations.
+Technically, this is achieved by adding resource-only packages (called
+overlay packages) to existing resource namespaces, like so:
+
+mPackageMap[0x00] -> system package -> system overlay package
+mPackageMap[0x01] -> NULL
+mPackageMap[0x02] -> NULL
+...
+mPackageMap[0x7f - 2] -> NULL
+mPackageMap[0x7f - 1] -> application package -> overlay 1 -> overlay 2
+
+The use of overlay resources is completely transparent to
+applications; no additional resource identifiers are introduced, only
+configuration/value pairs. Any number of overlay packages may be loaded
+at a time; overlay packages are agnostic to what they target -- both
+system and application resources are fair game.
+
+The package targeted by an overlay package is called the target or
+original package.
+
+Resource overlay operates on symbolic resources names. Hence, to
+override the string/str1 resources in a package, the overlay package
+would include a resource also named string/str1. The end user does not
+have to worry about the numeric resources IDs assigned by aapt, as this
+is resolved automatically by the system.
+
+As of this writing, the use of resource overlay has not been fully
+explored. Until it has, only OEMs are trusted to use resource overlay.
+For this reason, overlay packages must reside in /system/overlay.
+
+
+Resource ID mapping
+~~~~~~~~~~~~~~~~~~~
+Resource identifiers must be coherent within the same namespace (ie
+PackageGroup in ResourceTypes.cpp). Calling applications will refer to
+resources using the IDs defined in the original package, but there is no
+guarantee aapt has assigned the same ID to the corresponding resource in
+an overlay package. To translate between the two, a resource ID mapping
+{original ID -> overlay ID} is created during package installation
+(PackageManagerService.java) and used during resource lookup. The
+mapping is stored in /data/resource-cache, with a @idmap file name
+suffix.
+
+The idmap file format is documented in a separate section, below.
+
+
+Package management
+~~~~~~~~~~~~~~~~~~
+Packages are managed by the PackageManagerService. Addition and removal
+of packages are monitored via the inotify framework, exposed via
+android.os.FileObserver.
+
+During initialization of a Dalvik process, ActivityThread.java requests
+the process' AssetManager (by proxy, via AssetManager.java and JNI)
+to load a list of packages. This list includes overlay packages, if
+present.
+
+When a target package or a corresponding overlay package is installed,
+the target package's process is stopped and a new idmap is generated.
+This is similar to how applications are stopped when their packages are
+upgraded.
+
+
+Creating overlay packages
+-------------------------
+
+Overlay packages should contain no code, define (some) resources with
+the same type and name as in the original package, and be compiled with
+the -o flag passed to aapt.
+
+The aapt -o flag instructs aapt to create an overlay package.
+Technically, this means the package will be assigned package id 0x00.
+
+There are no restrictions on overlay packages names, though the naming
+convention <original.package.name>.overlay.<name> is recommended.
+
+
+Example overlay package
+~~~~~~~~~~~~~~~~~~~~~~~
+
+To overlay the resource bool/b in package com.foo.bar, to be applied
+when the display is in landscape mode, create a new package with
+no source code and a single .xml file under res/values-land, with
+an entry for bool/b. Compile with aapt -o and place the results in
+/system/overlay by adding the following to Android.mk:
+
+LOCAL_AAPT_FLAGS := -o com.foo.bar
+LOCAL_MODULE_PATH := $(TARGET_OUT)/overlay
+
+
+The ID map (idmap) file format
+------------------------------
+
+The idmap format is designed for lookup performance. However, leading
+and trailing undefined overlay values are discarded to reduce the memory
+footprint.
+
+
+idmap grammar
+~~~~~~~~~~~~~
+All atoms (names in square brackets) are uint32_t integers. The
+idmap-magic constant spells "idmp" in ASCII. Offsets are given relative
+to the data_header, not to the beginning of the file.
+
+map          := header data
+header       := idmap-magic <crc32-original-pkg> <crc32-overlay-pkg>
+idmap-magic  := <0x706d6469>
+data         := data_header type_block+
+data_header  := <m> header_block{m}
+header_block := <0> | <type_block_offset>
+type_block   := <n> <id_offset> entry{n}
+entry        := <resource_id_in_target_package>
+
+
+idmap example
+~~~~~~~~~~~~~
+Given a pair of target and overlay packages with CRC sums 0x216a8fe2
+and 0x6b9beaec, each defining the following resources
+
+Name          Target package  Overlay package
+string/str0   0x7f010000      -
+string/str1   0x7f010001      0x7f010000
+string/str2   0x7f010002      -
+string/str3   0x7f010003      0x7f010001
+string/str4   0x7f010004      -
+bool/bool0    0x7f020000      -
+integer/int0  0x7f030000      0x7f020000
+integer/int1  0x7f030001      -
+
+the corresponding resource map is
+
+0x706d6469 0x216a8fe2 0x6b9beaec 0x00000003 \
+0x00000004 0x00000000 0x00000009 0x00000003 \
+0x00000001 0x7f010000 0x00000000 0x7f010001 \
+0x00000001 0x00000000 0x7f020000
+
+or, formatted differently
+
+0x706d6469  # magic: all idmap files begin with this constant
+0x216a8fe2  # CRC32 of the resources.arsc file in the original package
+0x6b9beaec  # CRC32 of the resources.arsc file in the overlay package
+0x00000003  # header; three types (string, bool, integer) in the target package
+0x00000004  #   header_block for type 0 (string) is located at offset 4
+0x00000000  #   no bool type exists in overlay package -> no header_block
+0x00000009  #   header_block for type 2 (integer) is located at offset 9
+0x00000003  # header_block for string; overlay IDs span 3 elements
+0x00000001  #   the first string in target package is entry 1 == offset
+0x7f010000  #   target 0x7f01001 -> overlay 0x7f010000
+0x00000000  #   str2 not defined in overlay package
+0x7f010001  #   target 0x7f010003 -> overlay 0x7f010001
+0x00000001  # header_block for integer; overlay IDs span 1 element
+0x00000000  #   offset == 0
+0x7f020000  #   target 0x7f030000 -> overlay 0x7f020000
diff --git a/libs/utils/ResourceTypes.cpp b/libs/utils/ResourceTypes.cpp
index 7197ad7..a6cdb23 100644
--- a/libs/utils/ResourceTypes.cpp
+++ b/libs/utils/ResourceTypes.cpp
@@ -63,6 +63,10 @@
 #endif
 #endif
 
+#define IDMAP_MAGIC         0x706d6469
+// size measured in sizeof(uint32_t)
+#define IDMAP_HEADER_SIZE (ResTable::IDMAP_HEADER_SIZE_BYTES / sizeof(uint32_t))
+
 static void printToLogFunc(void* cookie, const char* txt)
 {
     LOGV("%s", txt);
@@ -214,6 +218,81 @@
     outData->colors = (uint32_t*) data;
 }
 
+static bool assertIdmapHeader(const uint32_t* map, size_t sizeBytes)
+{
+    if (sizeBytes < ResTable::IDMAP_HEADER_SIZE_BYTES) {
+        LOGW("idmap assertion failed: size=%d bytes\n", sizeBytes);
+        return false;
+    }
+    if (*map != htodl(IDMAP_MAGIC)) { // htodl: map data expected to be in correct endianess
+        LOGW("idmap assertion failed: invalid magic found (is 0x%08x, expected 0x%08x)\n",
+             *map, htodl(IDMAP_MAGIC));
+        return false;
+    }
+    return true;
+}
+
+static status_t idmapLookup(const uint32_t* map, size_t sizeBytes, uint32_t key, uint32_t* outValue)
+{
+    // see README for details on the format of map
+    if (!assertIdmapHeader(map, sizeBytes)) {
+        return UNKNOWN_ERROR;
+    }
+    map = map + IDMAP_HEADER_SIZE; // skip ahead to data segment
+    // size of data block, in uint32_t
+    const size_t size = (sizeBytes - ResTable::IDMAP_HEADER_SIZE_BYTES) / sizeof(uint32_t);
+    const uint32_t type = Res_GETTYPE(key) + 1; // add one, idmap stores "public" type id
+    const uint32_t entry = Res_GETENTRY(key);
+    const uint32_t typeCount = *map;
+
+    if (type > typeCount) {
+        LOGW("Resource ID map: type=%d exceeds number of types=%d\n", type, typeCount);
+        return UNKNOWN_ERROR;
+    }
+    if (typeCount > size) {
+        LOGW("Resource ID map: number of types=%d exceeds size of map=%d\n", typeCount, size);
+        return UNKNOWN_ERROR;
+    }
+    const uint32_t typeOffset = map[type];
+    if (typeOffset == 0) {
+        *outValue = 0;
+        return NO_ERROR;
+    }
+    if (typeOffset + 1 > size) {
+        LOGW("Resource ID map: type offset=%d exceeds reasonable value, size of map=%d\n",
+             typeOffset, size);
+        return UNKNOWN_ERROR;
+    }
+    const uint32_t entryCount = map[typeOffset];
+    const uint32_t entryOffset = map[typeOffset + 1];
+    if (entryCount == 0 || entry < entryOffset || entry - entryOffset > entryCount - 1) {
+        *outValue = 0;
+        return NO_ERROR;
+    }
+    const uint32_t index = typeOffset + 2 + entry - entryOffset;
+    if (index > size) {
+        LOGW("Resource ID map: entry index=%d exceeds size of map=%d\n", index, size);
+        *outValue = 0;
+        return NO_ERROR;
+    }
+    *outValue = map[index];
+
+    return NO_ERROR;
+}
+
+static status_t getIdmapPackageId(const uint32_t* map, size_t mapSize, uint32_t *outId)
+{
+    if (!assertIdmapHeader(map, mapSize)) {
+        return UNKNOWN_ERROR;
+    }
+    const uint32_t* p = map + IDMAP_HEADER_SIZE + 1;
+    while (*p == 0) {
+        ++p;
+    }
+    *outId = (map[*p + IDMAP_HEADER_SIZE + 2] >> 24) & 0x000000ff;
+    return NO_ERROR;
+}
+
 Res_png_9patch* Res_png_9patch::deserialize(const void* inData)
 {
     if (sizeof(void*) != sizeof(int32_t)) {
@@ -1290,7 +1369,13 @@
 
 struct ResTable::Header
 {
-    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL) { }
+    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
+        resourceIDMap(NULL), resourceIDMapSize(0) { }
+
+    ~Header()
+    {
+        free(resourceIDMap);
+    }
 
     ResTable* const                 owner;
     void*                           ownedData;
@@ -1301,6 +1386,8 @@
     void*                           cookie;
 
     ResStringPool                   values;
+    uint32_t*                       resourceIDMap;
+    size_t                          resourceIDMapSize;
 };
 
 struct ResTable::Type
@@ -1716,12 +1803,13 @@
     return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
 }
 
-status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData)
+status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
+                       const void* idmap)
 {
-    return add(data, size, cookie, NULL, copyData);
+    return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
 }
 
-status_t ResTable::add(Asset* asset, void* cookie, bool copyData)
+status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
 {
     const void* data = asset->getBuffer(true);
     if (data == NULL) {
@@ -1729,7 +1817,7 @@
         return UNKNOWN_ERROR;
     }
     size_t size = (size_t)asset->getLength();
-    return add(data, size, cookie, asset, copyData);
+    return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
 }
 
 status_t ResTable::add(ResTable* src)
@@ -1757,19 +1845,30 @@
 }
 
 status_t ResTable::add(const void* data, size_t size, void* cookie,
-                       Asset* asset, bool copyData)
+                       Asset* asset, bool copyData, const Asset* idmap)
 {
     if (!data) return NO_ERROR;
     Header* header = new Header(this);
     header->index = mHeaders.size();
     header->cookie = cookie;
+    if (idmap != NULL) {
+        const size_t idmap_size = idmap->getLength();
+        const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
+        header->resourceIDMap = (uint32_t*)malloc(idmap_size);
+        if (header->resourceIDMap == NULL) {
+            delete header;
+            return (mError = NO_MEMORY);
+        }
+        memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
+        header->resourceIDMapSize = idmap_size;
+    }
     mHeaders.add(header);
 
     const bool notDeviceEndian = htods(0xf0) != 0xf0;
 
     LOAD_TABLE_NOISY(
-        LOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d\n",
-             data, size, cookie, asset, copyData));
+        LOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
+             "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
     
     if (copyData || notDeviceEndian) {
         header->ownedData = malloc(size);
@@ -1836,7 +1935,16 @@
                      dtohl(header->header->packageCount));
                 return (mError=BAD_TYPE);
             }
-            if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) {
+            uint32_t idmap_id = 0;
+            if (idmap != NULL) {
+                uint32_t tmp;
+                if (getIdmapPackageId(header->resourceIDMap,
+                                      header->resourceIDMapSize,
+                                      &tmp) == NO_ERROR) {
+                    idmap_id = tmp;
+                }
+            }
+            if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
                 return mError;
             }
             curPackage++;
@@ -1858,6 +1966,7 @@
     if (mError != NO_ERROR) {
         LOGW("No string values found in resource table!");
     }
+
     TABLE_NOISY(LOGV("Returning from add with mError=%d\n", mError));
     return mError;
 }
@@ -2002,17 +2111,38 @@
     size_t ip = grp->packages.size();
     while (ip > 0) {
         ip--;
+        int T = t;
+        int E = e;
 
         const Package* const package = grp->packages[ip];
+        if (package->header->resourceIDMap) {
+            uint32_t overlayResID = 0x0;
+            status_t retval = idmapLookup(package->header->resourceIDMap,
+                                          package->header->resourceIDMapSize,
+                                          resID, &overlayResID);
+            if (retval == NO_ERROR && overlayResID != 0x0) {
+                // for this loop iteration, this is the type and entry we really want
+                LOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
+                T = Res_GETTYPE(overlayResID);
+                E = Res_GETENTRY(overlayResID);
+            } else {
+                // resource not present in overlay package, continue with the next package
+                continue;
+            }
+        }
 
         const ResTable_type* type;
         const ResTable_entry* entry;
         const Type* typeClass;
-        ssize_t offset = getEntry(package, t, e, desiredConfig, &type, &entry, &typeClass);
+        ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
         if (offset <= 0) {
-            if (offset < 0) {
+            // No {entry, appropriate config} pair found in package. If this
+            // package is an overlay package (ip != 0), this simply means the
+            // overlay package did not specify a default.
+            // Non-overlay packages are still required to provide a default.
+            if (offset < 0 && ip == 0) {
                 LOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
-                        resID, t, e, ip, (int)offset);
+                        resID, T, E, ip, (int)offset);
                 rc = offset;
                 goto out;
             }
@@ -2044,13 +2174,16 @@
 
         if (outSpecFlags != NULL) {
             if (typeClass->typeSpecFlags != NULL) {
-                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[e]);
+                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
             } else {
                 *outSpecFlags = -1;
             }
         }
-        
-        if (bestPackage != NULL && bestItem.isMoreSpecificThan(thisConfig)) {
+
+        if (bestPackage != NULL &&
+            (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
+            // Discard thisConfig not only if bestItem is more specific, but also if the two configs
+            // are identical (diff == 0), or overlay packages will not take effect.
             continue;
         }
         
@@ -2250,21 +2383,45 @@
 
     TABLE_NOISY(LOGI("Building bag: %p\n", (void*)resID));
     
+    ResTable_config bestConfig;
+    memset(&bestConfig, 0, sizeof(bestConfig));
+
     // Now collect all bag attributes from all packages.
     size_t ip = grp->packages.size();
     while (ip > 0) {
         ip--;
+        int T = t;
+        int E = e;
 
         const Package* const package = grp->packages[ip];
+        if (package->header->resourceIDMap) {
+            uint32_t overlayResID = 0x0;
+            status_t retval = idmapLookup(package->header->resourceIDMap,
+                                          package->header->resourceIDMapSize,
+                                          resID, &overlayResID);
+            if (retval == NO_ERROR && overlayResID != 0x0) {
+                // for this loop iteration, this is the type and entry we really want
+                LOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
+                T = Res_GETTYPE(overlayResID);
+                E = Res_GETENTRY(overlayResID);
+            } else {
+                // resource not present in overlay package, continue with the next package
+                continue;
+            }
+        }
 
         const ResTable_type* type;
         const ResTable_entry* entry;
         const Type* typeClass;
-        LOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, t, e);
-        ssize_t offset = getEntry(package, t, e, &mParams, &type, &entry, &typeClass);
+        LOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
+        ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
         LOGV("Resulting offset=%d\n", offset);
         if (offset <= 0) {
-            if (offset < 0) {
+            // No {entry, appropriate config} pair found in package. If this
+            // package is an overlay package (ip != 0), this simply means the
+            // overlay package did not specify a default.
+            // Non-overlay packages are still required to provide a default.
+            if (offset < 0 && ip == 0) {
                 if (set) free(set);
                 return offset;
             }
@@ -2277,6 +2434,15 @@
             continue;
         }
 
+        if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
+            continue;
+        }
+        bestConfig = type->config;
+        if (set) {
+            free(set);
+            set = NULL;
+        }
+
         const uint16_t entrySize = dtohs(entry->size);
         const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
             ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
@@ -2288,43 +2454,41 @@
         TABLE_NOISY(LOGI("Found map: size=%p parent=%p count=%d\n",
                          entrySize, parent, count));
 
-        if (set == NULL) {
-            // If this map inherits from another, we need to start
-            // with its parent's values.  Otherwise start out empty.
-            TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
-                         entrySize, parent));
-            if (parent) {
-                const bag_entry* parentBag;
-                uint32_t parentTypeSpecFlags = 0;
-                const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
-                const size_t NT = ((NP >= 0) ? NP : 0) + N;
-                set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
-                if (set == NULL) {
-                    return NO_MEMORY;
-                }
-                if (NP > 0) {
-                    memcpy(set+1, parentBag, NP*sizeof(bag_entry));
-                    set->numAttrs = NP;
-                    TABLE_NOISY(LOGI("Initialized new bag with %d inherited attributes.\n", NP));
-                } else {
-                    TABLE_NOISY(LOGI("Initialized new bag with no inherited attributes.\n"));
-                    set->numAttrs = 0;
-                }
-                set->availAttrs = NT;
-                set->typeSpecFlags = parentTypeSpecFlags;
-            } else {
-                set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
-                if (set == NULL) {
-                    return NO_MEMORY;
-                }
-                set->numAttrs = 0;
-                set->availAttrs = N;
-                set->typeSpecFlags = 0;
+        // If this map inherits from another, we need to start
+        // with its parent's values.  Otherwise start out empty.
+        TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
+                           entrySize, parent));
+        if (parent) {
+            const bag_entry* parentBag;
+            uint32_t parentTypeSpecFlags = 0;
+            const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
+            const size_t NT = ((NP >= 0) ? NP : 0) + N;
+            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
+            if (set == NULL) {
+                return NO_MEMORY;
             }
+            if (NP > 0) {
+                memcpy(set+1, parentBag, NP*sizeof(bag_entry));
+                set->numAttrs = NP;
+                TABLE_NOISY(LOGI("Initialized new bag with %d inherited attributes.\n", NP));
+            } else {
+                TABLE_NOISY(LOGI("Initialized new bag with no inherited attributes.\n"));
+                set->numAttrs = 0;
+            }
+            set->availAttrs = NT;
+            set->typeSpecFlags = parentTypeSpecFlags;
+        } else {
+            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
+            if (set == NULL) {
+                return NO_MEMORY;
+            }
+            set->numAttrs = 0;
+            set->availAttrs = N;
+            set->typeSpecFlags = 0;
         }
 
         if (typeClass->typeSpecFlags != NULL) {
-            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[e]);
+            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
         } else {
             set->typeSpecFlags = -1;
         }
@@ -3862,7 +4026,7 @@
 }
 
 status_t ResTable::parsePackage(const ResTable_package* const pkg,
-                                const Header* const header)
+                                const Header* const header, uint32_t idmap_id)
 {
     const uint8_t* base = (const uint8_t*)pkg;
     status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
@@ -3896,8 +4060,12 @@
     
     Package* package = NULL;
     PackageGroup* group = NULL;
-    uint32_t id = dtohl(pkg->id);
-    if (id != 0 && id < 256) {
+    uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
+    // If at this point id == 0, pkg is an overlay package without a
+    // corresponding idmap. During regular usage, overlay packages are
+    // always loaded alongside their idmaps, but during idmap creation
+    // the package is temporarily loaded by itself.
+    if (id < 256) {
     
         package = new Package(this, header, pkg);
         if (package == NULL) {
@@ -3950,7 +4118,7 @@
             return (mError=err);
         }
     } else {
-        LOG_ALWAYS_FATAL("Skins not supported!");
+        LOG_ALWAYS_FATAL("Package id out of range");
         return NO_ERROR;
     }
 
@@ -4101,6 +4269,136 @@
     return NO_ERROR;
 }
 
+status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
+                               void** outData, size_t* outSize) const
+{
+    // see README for details on the format of map
+    if (mPackageGroups.size() == 0) {
+        return UNKNOWN_ERROR;
+    }
+    if (mPackageGroups[0]->packages.size() == 0) {
+        return UNKNOWN_ERROR;
+    }
+
+    Vector<Vector<uint32_t> > map;
+    const PackageGroup* pg = mPackageGroups[0];
+    const Package* pkg = pg->packages[0];
+    size_t typeCount = pkg->types.size();
+    // starting size is header + first item (number of types in map)
+    *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
+    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
+    const uint32_t pkg_id = pkg->package->id << 24;
+
+    for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
+        ssize_t offset = -1;
+        const Type* typeConfigs = pkg->getType(typeIndex);
+        ssize_t mapIndex = map.add();
+        if (mapIndex < 0) {
+            return NO_MEMORY;
+        }
+        Vector<uint32_t>& vector = map.editItemAt(mapIndex);
+        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
+            uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
+                | (0x00ff0000 & ((typeIndex+1)<<16))
+                | (0x0000ffff & (entryIndex));
+            resource_name resName;
+            if (!this->getResourceName(resID, &resName)) {
+                return UNKNOWN_ERROR;
+            }
+
+            const String16 overlayType(resName.type, resName.typeLen);
+            const String16 overlayName(resName.name, resName.nameLen);
+            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
+                                                              overlayName.size(),
+                                                              overlayType.string(),
+                                                              overlayType.size(),
+                                                              overlayPackage.string(),
+                                                              overlayPackage.size());
+            if (overlayResID != 0) {
+                // overlay package has package ID == 0, use original package's ID instead
+                overlayResID |= pkg_id;
+            }
+            vector.push(overlayResID);
+            if (overlayResID != 0 && offset == -1) {
+                offset = Res_GETENTRY(resID);
+            }
+#if 0
+            if (overlayResID != 0) {
+                LOGD("%s/%s 0x%08x -> 0x%08x\n",
+                     String8(String16(resName.type)).string(),
+                     String8(String16(resName.name)).string(),
+                     resID, overlayResID);
+            }
+#endif
+        }
+
+        if (offset != -1) {
+            // shave off leading and trailing entries which lack overlay values
+            vector.removeItemsAt(0, offset);
+            vector.insertAt((uint32_t)offset, 0, 1);
+            while (vector.top() == 0) {
+                vector.pop();
+            }
+            // reserve space for number and offset of entries, and the actual entries
+            *outSize += (2 + vector.size()) * sizeof(uint32_t);
+        } else {
+            // no entries of current type defined in overlay package
+            vector.clear();
+            // reserve space for type offset
+            *outSize += 1 * sizeof(uint32_t);
+        }
+    }
+
+    if ((*outData = malloc(*outSize)) == NULL) {
+        return NO_MEMORY;
+    }
+    uint32_t* data = (uint32_t*)*outData;
+    *data++ = htodl(IDMAP_MAGIC);
+    *data++ = htodl(originalCrc);
+    *data++ = htodl(overlayCrc);
+    const size_t mapSize = map.size();
+    *data++ = htodl(mapSize);
+    size_t offset = mapSize;
+    for (size_t i = 0; i < mapSize; ++i) {
+        const Vector<uint32_t>& vector = map.itemAt(i);
+        const size_t N = vector.size();
+        if (N == 0) {
+            *data++ = htodl(0);
+        } else {
+            offset++;
+            *data++ = htodl(offset);
+            offset += N;
+        }
+    }
+    for (size_t i = 0; i < mapSize; ++i) {
+        const Vector<uint32_t>& vector = map.itemAt(i);
+        const size_t N = vector.size();
+        if (N == 0) {
+            continue;
+        }
+        *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
+        for (size_t j = 0; j < N; ++j) {
+            const uint32_t& overlayResID = vector.itemAt(j);
+            *data++ = htodl(overlayResID);
+        }
+    }
+
+    return NO_ERROR;
+}
+
+bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
+                            uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
+{
+    const uint32_t* map = (const uint32_t*)idmap;
+    if (!assertIdmapHeader(map, sizeBytes)) {
+        return false;
+    }
+    *pOriginalCrc = map[1];
+    *pOverlayCrc = map[2];
+    return true;
+}
+
+
 #ifndef HAVE_ANDROID_OS
 #define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
 
diff --git a/media/java/android/media/ThumbnailUtils.java b/media/java/android/media/ThumbnailUtils.java
index 7fdf448..7c181ee 100644
--- a/media/java/android/media/ThumbnailUtils.java
+++ b/media/java/android/media/ThumbnailUtils.java
@@ -83,7 +83,7 @@
      *
      * @param filePath the path of image file
      * @param kind could be MINI_KIND or MICRO_KIND
-     * @return Bitmap
+     * @return Bitmap, or null on failures
      *
      * @hide This method is only used by media framework and media provider internally.
      */
@@ -123,6 +123,8 @@
                 bitmap = BitmapFactory.decodeFileDescriptor(fd, null, options);
             } catch (IOException ex) {
                 Log.e(TAG, "", ex);
+            } catch (OutOfMemoryError oom) {
+                Log.e(TAG, "Unable to decode file " + filePath + ". OutOfMemoryError.", oom);
             }
         }
 
diff --git a/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java b/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
index cf38bd1..9bd8f36 100644
--- a/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
+++ b/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
@@ -18,6 +18,7 @@
 
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
+import android.nfc.ApduList;
 import android.nfc.INfcAdapterExtras;
 import android.nfc.NfcAdapter;
 import android.os.RemoteException;
@@ -57,7 +58,6 @@
 
     // protected by NfcAdapterExtras.class, and final after first construction
     private static INfcAdapterExtras sService;
-    private static boolean sIsInitialized = false;
     private static NfcAdapterExtras sSingleton;
     private static NfcExecutionEnvironment sEmbeddedEe;
     private static CardEmulationRoute sRouteOff;
@@ -74,14 +74,22 @@
      */
     public static NfcAdapterExtras get(NfcAdapter adapter) {
         synchronized(NfcAdapterExtras.class) {
-            if (!sIsInitialized) {
-               sIsInitialized = true;
-               sService = adapter.getNfcAdapterExtrasInterface();
-               sEmbeddedEe = new NfcExecutionEnvironment(sService);
-               sRouteOff = new CardEmulationRoute(CardEmulationRoute.ROUTE_OFF, null);
-               sRouteOnWhenScreenOn = new CardEmulationRoute(
-                       CardEmulationRoute.ROUTE_ON_WHEN_SCREEN_ON, sEmbeddedEe);
-               sSingleton = new NfcAdapterExtras();
+            if (sSingleton == null) {
+                try {
+                    sService = adapter.getNfcAdapterExtrasInterface();
+                    sEmbeddedEe = new NfcExecutionEnvironment(sService);
+                    sRouteOff = new CardEmulationRoute(CardEmulationRoute.ROUTE_OFF, null);
+                    sRouteOnWhenScreenOn = new CardEmulationRoute(
+                            CardEmulationRoute.ROUTE_ON_WHEN_SCREEN_ON, sEmbeddedEe);
+                    sSingleton = new NfcAdapterExtras();
+                } finally {
+                    if (sSingleton == null) {
+                        sService = null;
+                        sEmbeddedEe = null;
+                        sRouteOff = null;
+                        sRouteOnWhenScreenOn = null;
+                    }
+                }
             }
             return sSingleton;
         }
@@ -177,4 +185,20 @@
     public NfcExecutionEnvironment getEmbeddedExecutionEnvironment() {
         return sEmbeddedEe;
     }
+
+    public void registerTearDownApdus(String packageName, ApduList apdus) {
+        try {
+            sService.registerTearDownApdus(packageName, apdus);
+        } catch (RemoteException e) {
+            Log.e(TAG, "", e);
+        }
+    }
+
+    public void unregisterTearDownApdus(String packageName) {
+        try {
+            sService.unregisterTearDownApdus(packageName);
+        } catch (RemoteException e) {
+            Log.e(TAG, "", e);
+        }
+    }
 }
diff --git a/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_0.png b/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_0.png
index adde938..c8ddfce 100644
--- a/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_0.png
+++ b/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_0.png
Binary files differ
diff --git a/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_flash_anim1.png b/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_flash_anim1.png
index adde938..6b6a6df 100644
--- a/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_flash_anim1.png
+++ b/packages/SystemUI/res/drawable-hdpi/stat_sys_roaming_cdma_flash_anim1.png
Binary files differ
diff --git a/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_0.png b/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_0.png
index c61cce7..827d84a 100755
--- a/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_0.png
+++ b/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_0.png
Binary files differ
diff --git a/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_flash_anim1.png b/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_flash_anim1.png
index c61cce7..edc6023 100755
--- a/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_flash_anim1.png
+++ b/packages/SystemUI/res/drawable-mdpi/stat_sys_roaming_cdma_flash_anim1.png
Binary files differ
diff --git a/services/audioflinger/AudioResampler.cpp b/services/audioflinger/AudioResampler.cpp
index 5c3b43fc..dca795c 100644
--- a/services/audioflinger/AudioResampler.cpp
+++ b/services/audioflinger/AudioResampler.cpp
@@ -26,11 +26,15 @@
 #include "AudioResamplerSinc.h"
 #include "AudioResamplerCubic.h"
 
+#ifdef __arm__
+#include <machine/cpu-features.h>
+#endif
+
 namespace android {
 
-#ifdef __ARM_ARCH_5E__  // optimized asm option
+#ifdef __ARM_HAVE_HALFWORD_MULTIPLY // optimized asm option
     #define ASM_ARM_RESAMP1 // enable asm optimisation for ResamplerOrder1
-#endif // __ARM_ARCH_5E__
+#endif // __ARM_HAVE_HALFWORD_MULTIPLY
 // ----------------------------------------------------------------------------
 
 class AudioResamplerOrder1 : public AudioResampler {
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 998382c..e867b0b 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -531,18 +531,8 @@
      */
     public NetworkInfo getActiveNetworkInfo() {
         enforceAccessPermission();
-        for (int type=0; type <= ConnectivityManager.MAX_NETWORK_TYPE; type++) {
-            if (mNetConfigs[type] == null || !mNetConfigs[type].isDefault()) {
-                continue;
-            }
-            NetworkStateTracker t = mNetTrackers[type];
-            NetworkInfo info = t.getNetworkInfo();
-            if (info.isConnected()) {
-                if (DBG && type != mActiveDefaultNetwork) {
-                    loge("connected default network is not mActiveDefaultNetwork!");
-                }
-                return info;
-            }
+        if (mActiveDefaultNetwork != -1) {
+            return mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
         }
         return null;
     }
@@ -1310,6 +1300,7 @@
                     }
                     if (!teardown(otherNet)) {
                         loge("Network declined teardown request");
+                        teardown(thisNet);
                         return;
                     }
                 }
@@ -1359,6 +1350,19 @@
                 handleApplyDefaultProxy(netType);
                 addDefaultRoute(mNetTrackers[netType]);
             } else {
+                // many radios add a default route even when we don't want one.
+                // remove the default interface unless we need it for our active network
+                if (mActiveDefaultNetwork != -1) {
+                    LinkProperties linkProperties =
+                            mNetTrackers[mActiveDefaultNetwork].getLinkProperties();
+                    LinkProperties newLinkProperties =
+                            mNetTrackers[netType].getLinkProperties();
+                    String defaultIface = linkProperties.getInterfaceName();
+                    if (defaultIface != null &&
+                            !defaultIface.equals(newLinkProperties.getInterfaceName())) {
+                        removeDefaultRoute(mNetTrackers[netType]);
+                    }
+                }
                 addPrivateDnsRoutes(mNetTrackers[netType]);
             }
         } else {
diff --git a/services/java/com/android/server/MountService.java b/services/java/com/android/server/MountService.java
index 91ada6b..a34b7dc 100644
--- a/services/java/com/android/server/MountService.java
+++ b/services/java/com/android/server/MountService.java
@@ -1532,7 +1532,8 @@
         } catch (NativeDaemonConnectorException e) {
             int code = e.getCode();
             if (code == VoldResponseCode.OpFailedStorageNotFound) {
-                throw new IllegalArgumentException(String.format("Container '%s' not found", id));
+                Slog.i(TAG, String.format("Container '%s' not found", id));
+                return null;
             } else {
                 throw new IllegalStateException(String.format("Unexpected response code %d", code));
             }
diff --git a/services/java/com/android/server/VibratorService.java b/services/java/com/android/server/VibratorService.java
index 2fcdb5d..c39dc80 100755
--- a/services/java/com/android/server/VibratorService.java
+++ b/services/java/com/android/server/VibratorService.java
@@ -247,6 +247,7 @@
     // Lock held on mVibrations
     private void startNextVibrationLocked() {
         if (mVibrations.size() <= 0) {
+            mCurrentVibration = null;
             return;
         }
         mCurrentVibration = mVibrations.getFirst();
@@ -273,17 +274,27 @@
             Vibration vib = iter.next();
             if (vib.mToken == token) {
                 iter.remove();
+                unlinkVibration(vib);
                 return vib;
             }
         }
         // We might be looking for a simple vibration which is only stored in
         // mCurrentVibration.
         if (mCurrentVibration != null && mCurrentVibration.mToken == token) {
+            unlinkVibration(mCurrentVibration);
             return mCurrentVibration;
         }
         return null;
     }
 
+    private void unlinkVibration(Vibration vib) {
+        if (vib.mPattern != null) {
+            // If Vibration object has a pattern,
+            // the Vibration object has also been linkedToDeath.
+            vib.mToken.unlinkToDeath(vib, 0);
+        }
+    }
+
     private class VibrateThread extends Thread {
         final Vibration mVibration;
         boolean mDone;
@@ -360,6 +371,7 @@
                     // If this vibration finished naturally, start the next
                     // vibration.
                     mVibrations.remove(mVibration);
+                    unlinkVibration(mVibration);
                     startNextVibrationLocked();
                 }
             }
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 267c76a..50fffd0 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -6996,8 +6996,9 @@
 
         addErrorToDropBox("wtf", r, null, null, tag, null, null, crashInfo);
 
-        if (Settings.Secure.getInt(mContext.getContentResolver(),
-                Settings.Secure.WTF_IS_FATAL, 0) != 0) {
+        if (r != null && r.pid != Process.myPid() &&
+                Settings.Secure.getInt(mContext.getContentResolver(),
+                        Settings.Secure.WTF_IS_FATAL, 0) != 0) {
             crashApplication(r, crashInfo);
             return true;
         } else {
diff --git a/services/java/com/android/server/location/GpsLocationProvider.java b/services/java/com/android/server/location/GpsLocationProvider.java
index 3561862..63ce0bd 100755
--- a/services/java/com/android/server/location/GpsLocationProvider.java
+++ b/services/java/com/android/server/location/GpsLocationProvider.java
@@ -203,7 +203,7 @@
     // flags to trigger NTP or XTRA data download when network becomes available
     // initialized to true so we do NTP and XTRA when the network comes up after booting
     private boolean mInjectNtpTimePending = true;
-    private boolean mDownloadXtraDataPending = false;
+    private boolean mDownloadXtraDataPending = true;
 
     // true if GPS is navigating
     private boolean mNavigating;
diff --git a/telephony/java/com/android/internal/telephony/sip/SipPhone.java b/telephony/java/com/android/internal/telephony/sip/SipPhone.java
old mode 100755
new mode 100644
index 7373cbb..5471289
--- a/telephony/java/com/android/internal/telephony/sip/SipPhone.java
+++ b/telephony/java/com/android/internal/telephony/sip/SipPhone.java
@@ -40,6 +40,7 @@
 
 import java.text.ParseException;
 import java.util.List;
+import java.util.regex.Pattern;
 
 /**
  * {@hide}
@@ -386,8 +387,8 @@
         Connection dial(String originalNumber) throws SipException {
             String calleeSipUri = originalNumber;
             if (!calleeSipUri.contains("@")) {
-                calleeSipUri = mProfile.getUriString().replaceFirst(
-                        mProfile.getUserName() + "@",
+                String replaceStr = Pattern.quote(mProfile.getUserName() + "@");
+                calleeSipUri = mProfile.getUriString().replaceFirst(replaceStr,
                         calleeSipUri + "@");
             }
             try {
diff --git a/tests/CoreTests/android/core/HttpHeaderTest.java b/tests/CoreTests/android/core/HttpHeaderTest.java
index a5d48578..eedbc3f 100644
--- a/tests/CoreTests/android/core/HttpHeaderTest.java
+++ b/tests/CoreTests/android/core/HttpHeaderTest.java
@@ -19,12 +19,19 @@
 import org.apache.http.util.CharArrayBuffer;
 
 import android.net.http.Headers;
+import android.util.Log;
+import android.webkit.CacheManager;
+import android.webkit.CacheManager.CacheResult;
+
+import java.lang.reflect.Method;
 
 public class HttpHeaderTest extends AndroidTestCase {
 
     static final String LAST_MODIFIED = "Last-Modified: Fri, 18 Jun 2010 09:56:47 GMT";
     static final String CACHE_CONTROL_MAX_AGE = "Cache-Control:max-age=15";
     static final String CACHE_CONTROL_PRIVATE = "Cache-Control: private";
+    static final String CACHE_CONTROL_COMPOUND = "Cache-Control: no-cache, max-age=200000";
+    static final String CACHE_CONTROL_COMPOUND2 = "Cache-Control: max-age=200000, no-cache";
 
     /**
      * Tests that cache control header supports multiple instances of the header,
@@ -59,4 +66,39 @@
         h.parseHeader(buffer);
         assertEquals("max-age=15,private", h.getCacheControl());
     }
+
+    // Test that cache behaves correctly when receiving a compund
+    // cache-control statement containing no-cache and max-age argument.
+    //
+    // If a cache control header contains both a max-age arument and
+    // a no-cache argument the max-age argument should be ignored.
+    // The resource can be cached, but a validity check must be done on
+    // every request. Test case checks that the expiry time is 0 for
+    // this item, so item will be validated on subsequent requests.
+    public void testCacheControlMultipleArguments() throws Exception {
+        // get private method CacheManager.parseHeaders()
+        Method m = CacheManager.class.getDeclaredMethod("parseHeaders",
+                new Class[] {int.class, Headers.class, String.class});
+        m.setAccessible(true);
+
+        // create indata
+        Headers h = new Headers();
+        CharArrayBuffer buffer = new CharArrayBuffer(64);
+        buffer.append(CACHE_CONTROL_COMPOUND);
+        h.parseHeader(buffer);
+
+        CacheResult c = (CacheResult)m.invoke(null, 200, h, "text/html");
+
+        // Check that expires is set to 0, to ensure that no-cache has overridden
+        // the max-age argument
+        assertEquals(0, c.getExpires());
+
+        // check reverse order
+        buffer.clear();
+        buffer.append(CACHE_CONTROL_COMPOUND2);
+        h.parseHeader(buffer);
+
+        c = (CacheResult)m.invoke(null, 200, h, "text/html");
+        assertEquals(0, c.getExpires());
+    }
 }
diff --git a/tools/aapt/Bundle.h b/tools/aapt/Bundle.h
index 15570e4..fa84e93 100644
--- a/tools/aapt/Bundle.h
+++ b/tools/aapt/Bundle.h
@@ -40,6 +40,7 @@
           mWantUTF16(false), mValues(false),
           mCompressionMethod(0), mOutputAPKFile(NULL),
           mManifestPackageNameOverride(NULL), mInstrumentationPackageNameOverride(NULL),
+          mIsOverlayPackage(false),
           mAutoAddOverlay(false), mAssetSourceDir(NULL), mProguardFile(NULL),
           mAndroidManifestFile(NULL), mPublicOutputFile(NULL),
           mRClassDir(NULL), mResourceIntermediatesDir(NULL), mManifestMinSdkVersion(NULL),
@@ -92,6 +93,8 @@
     void setManifestPackageNameOverride(const char * val) { mManifestPackageNameOverride = val; }
     const char* getInstrumentationPackageNameOverride() const { return mInstrumentationPackageNameOverride; }
     void setInstrumentationPackageNameOverride(const char * val) { mInstrumentationPackageNameOverride = val; }
+    bool getIsOverlayPackage() const { return mIsOverlayPackage; }
+    void setIsOverlayPackage(bool val) { mIsOverlayPackage = val; }
     bool getAutoAddOverlay() { return mAutoAddOverlay; }
     void setAutoAddOverlay(bool val) { mAutoAddOverlay = val; }
 
@@ -219,6 +222,7 @@
     const char* mOutputAPKFile;
     const char* mManifestPackageNameOverride;
     const char* mInstrumentationPackageNameOverride;
+    bool        mIsOverlayPackage;
     bool        mAutoAddOverlay;
     const char* mAssetSourceDir;
     const char* mProguardFile;
diff --git a/tools/aapt/Main.cpp b/tools/aapt/Main.cpp
index 266a02f..1e63131 100644
--- a/tools/aapt/Main.cpp
+++ b/tools/aapt/Main.cpp
@@ -68,6 +68,7 @@
         "        [-S resource-sources [-S resource-sources ...]] "
         "        [-F apk-file] [-J R-file-dir] \\\n"
         "        [--product product1,product2,...] \\\n"
+        "        [-o] \\\n"
         "        [raw-files-dir [raw-files-dir] ...]\n"
         "\n"
         "   Package the android resources.  It will read assets and resources that are\n"
@@ -105,6 +106,7 @@
         "   -j  specify a jar or zip file containing classes to include\n"
         "   -k  junk path of file(s) added\n"
         "   -m  make package directories under location specified by -J\n"
+        "   -o  create overlay package (ie only resources; expects <overlay-package> in manifest)\n"
 #if 0
         "   -p  pseudolocalize the default configuration\n"
 #endif
@@ -275,6 +277,9 @@
             case 'm':
                 bundle.setMakePackageDirs(true);
                 break;
+            case 'o':
+                bundle.setIsOverlayPackage(true);
+                break;
 #if 0
             case 'p':
                 bundle.setPseudolocalize(true);
diff --git a/tools/aapt/ResourceTable.cpp b/tools/aapt/ResourceTable.cpp
index 5339566..6d5fcc2 100644
--- a/tools/aapt/ResourceTable.cpp
+++ b/tools/aapt/ResourceTable.cpp
@@ -3681,7 +3681,9 @@
 {
     sp<Package> p = mPackages.valueFor(package);
     if (p == NULL) {
-        if (mIsAppPackage) {
+        if (mBundle->getIsOverlayPackage()) {
+            p = new Package(package, 0x00);
+        } else if (mIsAppPackage) {
             if (mHaveAppPackage) {
                 fprintf(stderr, "Adding multiple application package resources; only one is allowed.\n"
                                 "Use -x to create extended resources.\n");
diff --git a/voip/java/com/android/server/sip/SipHelper.java b/voip/java/com/android/server/sip/SipHelper.java
index ac580e7..4ee86b6 100644
--- a/voip/java/com/android/server/sip/SipHelper.java
+++ b/voip/java/com/android/server/sip/SipHelper.java
@@ -27,6 +27,8 @@
 import java.util.ArrayList;
 import java.util.EventObject;
 import java.util.List;
+import java.util.regex.Pattern;
+
 import javax.sip.ClientTransaction;
 import javax.sip.Dialog;
 import javax.sip.DialogTerminatedEvent;
@@ -215,9 +217,11 @@
             String tag) throws ParseException, SipException {
         FromHeader fromHeader = createFromHeader(userProfile, tag);
         ToHeader toHeader = createToHeader(userProfile);
+
+        String replaceStr = Pattern.quote(userProfile.getUserName() + "@");
         SipURI requestURI = mAddressFactory.createSipURI(
-                userProfile.getUriString().replaceFirst(
-                userProfile.getUserName() + "@", ""));
+                userProfile.getUriString().replaceFirst(replaceStr, ""));
+
         List<ViaHeader> viaHeaders = createViaHeaders();
         CallIdHeader callIdHeader = createCallIdHeader();
         CSeqHeader cSeqHeader = createCSeqHeader(requestType);
diff --git a/voip/jni/rtp/AudioGroup.cpp b/voip/jni/rtp/AudioGroup.cpp
index c031eee..41fedce 100644
--- a/voip/jni/rtp/AudioGroup.cpp
+++ b/voip/jni/rtp/AudioGroup.cpp
@@ -30,6 +30,7 @@
 
 #define LOG_TAG "AudioGroup"
 #include <cutils/atomic.h>
+#include <cutils/properties.h>
 #include <utils/Log.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
@@ -619,6 +620,14 @@
     if (mode < 0 || mode > LAST_MODE) {
         return false;
     }
+    //FIXME: temporary code to overcome echo and mic gain issues on herring board.
+    // Must be modified/removed when proper support for voice processing query and control
+    // is included in audio framework
+    char value[PROPERTY_VALUE_MAX];
+    property_get("ro.product.board", value, "");
+    if (mode == NORMAL && !strcmp(value, "herring")) {
+        mode = ECHO_SUPPRESSION;
+    }
     if (mode == ECHO_SUPPRESSION && AudioSystem::getParameters(
         0, String8("ec_supported")) == "ec_supported=yes") {
         mode = NORMAL;