[Android] A prototype of the interactive media notification.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 3df8edb12fb483d5ba4ad4ef7a8c350a20cee49d..30b34319cc1f8f58db35e850eacf1c0404091af6 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -118,6 +118,7 @@
 #include "content/browser/android/content_video_view.h"
 #include "content/browser/android/date_time_chooser_android.h"
 #include "content/browser/android/media_players_observer.h"
+#include "content/browser/media/android/media_session.h"
 #include "content/browser/web_contents/web_contents_android.h"
 #endif
 
@@ -3276,6 +3277,25 @@ void WebContentsImpl::OnMediaPausedNotification(int64 player_cookie) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, MediaPaused());
 }
 
+#if defined(OS_ANDROID)
+
+void WebContentsImpl::OnMediaSessionStateChanged() {
+  MediaSession* session = MediaSession::Get(this);
+  FOR_EACH_OBSERVER(WebContentsObserver, observers_,
+                    MediaSessionStateChanged(session->IsControllable(),
+                                             session->IsSuspended()));
+}
+
+void WebContentsImpl::ResumeMediaSession() {
+  MediaSession::Get(this)->Resume();
+}
+
+void WebContentsImpl::SuspendMediaSession() {
+  MediaSession::Get(this)->Suspend();
+}
+
+#endif  // defined(OS_ANDROID)
+
 void WebContentsImpl::OnFirstVisuallyNonEmptyPaint() {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     DidFirstVisuallyNonEmptyPaint());