Implement out-of-band video compositing on Android: Step 1

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index f7d3c4b2c9f8d1921c2d2169076dba0472f71796..585709d0b83a7a7527349612624aece9bff7586c 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -2556,6 +2556,22 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
         return mRenderCoordinates;
     }
 
+    /**
+     * Notify the native object about creation of external video surface.
+     * @param surface The external video surface object
+     */
+    public void externalVideoSurfaceCreated(Surface surface) {
+        nativeExternalVideoSurfaceCreated(mNativeContentViewCore, surface);
+    }
+
+    /**
+     * Notify the native object about destruction of external video surface.
+     * @param surface The external video surface object
+     */
+    public void externalVideoSurfaceDestroyed(Surface surface) {
+        nativeExternalVideoSurfaceDestroyed(mNativeContentViewCore);
+    }
+
     private native int nativeInit(boolean hardwareAccelerated, boolean inputEventsDeliveredAtVSync,
             int webContentsPtr, int windowAndroidPtr);
 
@@ -2719,4 +2735,9 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
             int nativeContentViewCoreImpl, boolean enable);
 
     private native void nativeShowImeIfNeeded(int nativeContentViewCoreImpl);
+
+    private native void nativeExternalVideoSurfaceCreated(int nativeContentViewCoreImpl,
+            Surface surface);
+
+    private native void nativeExternalVideoSurfaceDestroyed(int nativeContentViewCoreImpl);
 }