[Android] A prototype of the interactive media notification.

content/browser/web_contents/web_contents_impl.cc

 // 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.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 100 matching lines @@
 #include "ui/gl/gl_switches.h"
 
 #if defined(ENABLE_BROWSER_CDMS)
 #include "content/browser/media/media_web_contents_observer.h"
 #endif
 
 #if defined(OS_ANDROID)
 #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
 
 #if defined(OS_MACOSX)
 #include "base/mac/foundation_util.h"
 #endif
 
 namespace content {
 namespace {
 
@@ skipping 3138 matching lines @@
 }
 
 void WebContentsImpl::OnMediaPausedNotification(int64 player_cookie) {
   RemoveMediaPlayerEntry(player_cookie, &active_audio_players_);
   RemoveMediaPlayerEntry(player_cookie, &active_video_players_);
   MaybeReleasePowerSaveBlockers();
 
   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());
 
   did_first_visually_non_empty_paint_ = true;
 
   if (theme_color_ != last_sent_theme_color_) {
     // Theme color should have updated by now if there was one.
     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                       DidChangeThemeColor(theme_color_));
@@ skipping 1187 matching lines @@
   player_map->erase(it);
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content