Revert of Revert of Propagate audible state from player to the containing tab"

media/base/android/media_player_android.cc

 // Copyright (c) 2013 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 "media/base/android/media_player_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "media/base/android/media_drm_bridge.h"
 #include "media/base/android/media_player_manager.h"
 
 namespace media {
 
 MediaPlayerAndroid::MediaPlayerAndroid(
     int player_id,
     MediaPlayerManager* manager,
     const RequestMediaResourcesCB& request_media_resources_cb,
     const GURL& frame_url)
     : request_media_resources_cb_(request_media_resources_cb),
       player_id_(player_id),
       manager_(manager),
       frame_url_(frame_url),
+      is_audible_(false),
       weak_factory_(this) {
   listener_.reset(new MediaPlayerListener(base::MessageLoopProxy::current(),
                                           weak_factory_.GetWeakPtr()));
 }
 
 MediaPlayerAndroid::~MediaPlayerAndroid() {}
 
 GURL MediaPlayerAndroid::GetUrl() {
   return GURL();
 }
@@ skipping 38 matching lines @@
   jobject j_context = base::android::GetApplicationContext();
   DCHECK(j_context);
 
   listener_->CreateMediaPlayerListener(j_context, j_media_player);
 }
 
 void MediaPlayerAndroid::DetachListener() {
   listener_->ReleaseMediaPlayerListenerResources();
 }
 
+void MediaPlayerAndroid::SetAudible(bool is_audible) {
+  if (is_audible_ != is_audible) {
+    is_audible_ = is_audible;
+    manager_->OnAudibleStateChanged(player_id(), is_audible_);
+  }
+}
 
 }  // namespace media