Rename Gallery activity and add trampoline

Bug: 10807861

Change-Id: Iaaf17b579db2fe09900e9817f766f43dd66dea61
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 41eb461..8f48edf 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -85,7 +85,7 @@
              </intent-filter>
         </activity>
 
-        <activity android:name="com.android.gallery3d.app.Gallery" android:label="@string/app_name"
+        <activity android:name="com.android.gallery3d.app.GalleryActivity" android:label="@string/app_name"
                 android:configChanges="keyboardHidden|orientation|screenSize">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -161,10 +161,21 @@
             </intent-filter>
         </activity>
 
+        <!-- This activity acts as a trampoline to the new Gallery activity,
+             so that existing shortcuts are preserved. -->
+        <activity android:name="com.android.gallery3d.app.Gallery"
+            android:excludeFromRecents="true"
+            android:theme="@style/android:Theme.NoDisplay">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
         <!-- we add this activity-alias for shortcut backward compatibility -->
         <!-- Note: The alias must put after the target activity -->
         <activity-alias android:name="com.cooliris.media.Gallery"
-                android:targetActivity="com.android.gallery3d.app.Gallery"
+                android:targetActivity="com.android.gallery3d.app.GalleryActivity"
                 android:configChanges="keyboardHidden|orientation|screenSize"
                 android:label="@string/app_name">
             <intent-filter>