Reverted the code for the non-interactive audible tab notification

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/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.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::ThreadTaskRunnerHandle::Get(),
                                           weak_factory_.GetWeakPtr()));
 }
 
 MediaPlayerAndroid::~MediaPlayerAndroid() {}
 
 // For most subclasses we can delete on the caller thread.
 void MediaPlayerAndroid::DeleteOnCorrectThread() {
   delete this;
@@ skipping 48 matching lines @@
 
 void MediaPlayerAndroid::DetachListener() {
   listener_->ReleaseMediaPlayerListenerResources();
 }
 
 void MediaPlayerAndroid::DestroyListenerOnUIThread() {
   weak_factory_.InvalidateWeakPtrs();
   listener_.reset();
 }
 
-void MediaPlayerAndroid::SetAudible(bool is_audible) {
-  if (is_audible_ != is_audible) {
-    is_audible_ = is_audible;
-    manager_->OnAudibleStateChanged(player_id(), is_audible_);
-  }
-}
-
 base::WeakPtr<MediaPlayerAndroid> MediaPlayerAndroid::WeakPtrForUIThread() {
   return weak_factory_.GetWeakPtr();
 }
 
 }  // namespace media