Restart fullscreen video playback when switching back from background

content/browser/android/content_video_view.h

Index: content/browser/android/content_video_view.h
diff --git a/content/browser/android/content_video_view.h b/content/browser/android/content_video_view.h
index 2a86830def3b16ce053d09ae46b8506c7e188e13..a9b0a2e90fa761192d6582c19dadea9e05afdf09 100644
--- a/content/browser/android/content_video_view.h
+++ b/content/browser/android/content_video_view.h
@@ -17,6 +17,7 @@
 namespace content {
 
 class BrowserMediaPlayerManager;
+class ContentViewCoreImpl;
 
 // Native mirror of ContentVideoView.java. This class is responsible for
 // creating the Java video view and pass all the player status change to
@@ -31,6 +32,8 @@ class ContentVideoView {
       const base::android::ScopedJavaLocalRef<jobject>& client,
       BrowserMediaPlayerManager* manager);
 
+  ContentVideoView(BrowserMediaPlayerManager* manager);
+
   ~ContentVideoView();
 
   // To open another video on existing ContentVideoView.
@@ -39,8 +42,8 @@ class ContentVideoView {
   static bool RegisterContentVideoView(JNIEnv* env);
   static void KeepScreenOn(bool screen_on);
 
-  // Return true if there is existing ContentVideoView object.
-  static bool HasContentVideoView();
+  // Return the singleton object or NULL.
+  static ContentVideoView* GetInstance();
 
   // Getter method called by the Java class to get the media information.
   int GetVideoWidth(JNIEnv*, jobject obj) const;
@@ -55,6 +58,15 @@ class ContentVideoView {
   // as we are quitting the app.
   void ExitFullscreen(JNIEnv*, jobject, jboolean release_media_player);
 
+  // Supposed to be called when the application paused or stopped.
+  // Destroys the fullscreen view in a way that it can be recreated
+  // via ResumeFullscreenIfSuspended.
+  void SuspendFullscreen();
+
+  // Supposed to be called when the application switches back to foreground.
+  // Recreates the fullscreen view if it was suspended via SuspendFullscreen.
+  void ResumeFullscreenIfSuspended();
+
   // Media control method called by the Java class.
   void SeekTo(JNIEnv*, jobject obj, jint msec);
   void Play(JNIEnv*, jobject obj);
@@ -75,6 +87,10 @@ class ContentVideoView {
   // Return the corresponing ContentVideoView Java object if any.
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject(JNIEnv* env);
 
+  // Creates the corresponding ContentVideoView Java object.
+  JavaObjectWeakGlobalRef CreateJavaObject(
+      ContentViewCoreImpl* content_view_core);

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

no need for the input param, you can get that from manager_ inside this
function.

+
  private:
   // Destroy the |j_content_video_view_|. If |native_view_destroyed| is true,
   // no further calls to the native object is allowed.
@@ -87,6 +103,12 @@ class ContentVideoView {
   // Weak reference of corresponding Java object.
   JavaObjectWeakGlobalRef j_content_video_view_;
 
+  enum FullscreenState {
+    Entered,
+    Suspend,
+    Resume
+  } fullscreen_state_;
+
   DISALLOW_COPY_AND_ASSIGN(ContentVideoView);
 };