Restart fullscreen video playback when switching back from background

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

 // Copyright (c) 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.DialogInterface;
@@ skipping 317 matching lines @@
     }
 
     @Override
     public void surfaceCreated(SurfaceHolder holder) {
         mSurfaceHolder = holder;
         openVideo();
     }
 
     @Override
     public void surfaceDestroyed(SurfaceHolder holder) {
-        if (mNativeContentVideoView != 0) {
-            nativeSetSurface(mNativeContentVideoView, null);
-        }
+        // We expect the native side to call destroyContentVideoView

[qinmin, 2013/12/18 02:09:46]

This is not right. When user hit the home button, SurfaceDestroyed should be
called before the native side call exitFullscreen.

[kbalazs, 2013/12/18 19:45:05]

If the user calls ContentView.onHide in it's activity's onStop than PauseVideo
will be called before the view is destroyed. I think surfaceDestroyed cannot be
called before onStop returns. So this is the case with test_shell and
content_shell and I expect that all clients should do that.

However we can keep it to make sure it's destroyed even if ContentView.onHide is
never called.

+        // before our surface could have been bone.
+        assert mVideoSurfaceView == null;
         mSurfaceHolder = null;
-        post(mExitFullscreenRunnable);
     }
 
     private void setMediaController(MediaController controller) {
         if (mMediaController != null) {
             mMediaController.hide();
         }
         mMediaController = controller;
         attachMediaController();
     }
 
@@ skipping 265 matching lines @@
     private native int nativeGetDurationInMilliSeconds(long nativeContentVideoView);
     private native void nativeUpdateMediaMetadata(long nativeContentVideoView);
     private native int nativeGetVideoWidth(long nativeContentVideoView);
     private native int nativeGetVideoHeight(long nativeContentVideoView);
     private native boolean nativeIsPlaying(long nativeContentVideoView);
     private native void nativePause(long nativeContentVideoView);
     private native void nativePlay(long nativeContentVideoView);
     private native void nativeSeekTo(long nativeContentVideoView, int msec);
     private native void nativeSetSurface(long nativeContentVideoView, Surface surface);
 }