NOT FOR REVIEW: Modify ToggleFullscreenMode.

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

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.ContextWrapper;
@@ skipping 401 matching lines @@
     @CalledByNative
     private static ContentVideoView createContentVideoView(
             ContentViewCore contentViewCore, long nativeContentVideoView) {
         Context context = contentViewCore.getContext();
         ThreadUtils.assertOnUiThread();
         // The context needs be Activity to create the ContentVideoView correctly.
         if (!isActivityContext(context)) {
             Log.e(TAG, "Wrong type of context, can't create fullscreen video");
             return null;
         }
-        return new ContentVideoView(context, nativeContentVideoView,
-                contentViewCore.getContentVideoViewClient());
+        ContentVideoViewClient client = contentViewCore.getContentVideoViewClient();
+        ContentVideoView videoView = new ContentVideoView(context, nativeContentVideoView, client);
+        client.enterFullscreenVideo(videoView);
+        return videoView;
     }
 
     private static boolean isActivityContext(Context context) {
         // Only retrieve the base context if the supplied context is a ContextWrapper but not
         // an Activity, given that Activity is already a subclass of ContextWrapper.
         if (context instanceof ContextWrapper && !(context instanceof Activity)) {
             context = ((ContextWrapper) context).getBaseContext();
         }
         return context instanceof Activity;
     }
@@ skipping 31 matching lines @@
 
     /**
      * This method shall only be called by native and exitFullscreen,
      * To exit fullscreen, use exitFullscreen in Java.
      */
     @CalledByNative
     protected void destroyContentVideoView(boolean nativeViewDestroyed) {
         if (mVideoSurfaceView != null) {
             removeSurfaceView();
             setVisibility(View.GONE);
+
+            // To prevent re-entrance, call this after removeSurfaceView.
+            mClient.exitFullscreenVideo();
         }
         if (nativeViewDestroyed) {
             mNativeContentVideoView = 0;
         }
     }
 
     public static ContentVideoView getContentVideoView() {
         return nativeGetSingletonJavaContentVideoView();
     }
 
@@ skipping 28 matching lines @@
     private native void nativePlay(long nativeContentVideoView);
     private native void nativeSeekTo(long nativeContentVideoView, int msec);
     private native void nativeSetSurface(long nativeContentVideoView, Surface surface);
     private native void nativeRecordFullscreenPlayback(
             long nativeContentVideoView, boolean isVideoPortrait, boolean isOrientationPortrait);
     private native void nativeRecordExitFullscreenPlayback(
             long nativeContentVideoView, boolean isOrientationPortrait,
             long playbackDurationBeforeOrientationChange,
             long playbackDurationAfterOrientationChange);
 }