Pass media session id over IPC

content/renderer/media/android/webmediasession_android.cc

 // Copyright 2015 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/renderer/media/android/webmediasession_android.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/common/media_metadata.h"
 #include "content/renderer/media/android/renderer_media_session_manager.h"
 #include "third_party/WebKit/public/platform/modules/mediasession/WebMediaMetadata.h"
 
 namespace content {
 
 WebMediaSessionAndroid::WebMediaSessionAndroid(
     RendererMediaSessionManager* session_manager)
     : session_manager_(session_manager) {
   DCHECK(session_manager_);
-  session_id_ = session_manager_->RegisterMediaSession(this);
+  media_session_id_ = session_manager_->RegisterMediaSession(this);
 }
 
 WebMediaSessionAndroid::~WebMediaSessionAndroid() {
-  session_manager_->UnregisterMediaSession(session_id_);
+  session_manager_->UnregisterMediaSession(media_session_id_);
 }
 
 void WebMediaSessionAndroid::activate(
     blink::WebMediaSessionActivateCallback* callback) {
-  session_manager_->Activate(session_id_, make_scoped_ptr(callback));
+  session_manager_->Activate(media_session_id_, make_scoped_ptr(callback));
 }
 
 void WebMediaSessionAndroid::deactivate(
     blink::WebMediaSessionDeactivateCallback* callback) {
-  session_manager_->Deactivate(session_id_, make_scoped_ptr(callback));
+  session_manager_->Deactivate(media_session_id_, make_scoped_ptr(callback));
 }
 
 void WebMediaSessionAndroid::setMetadata(
     const blink::WebMediaMetadata* web_metadata) {
   MediaMetadata metadata;
   if (web_metadata) {
     metadata.title = web_metadata->title;
     metadata.artist = web_metadata->artist;
     metadata.album = web_metadata->album;
   }
 
-  session_manager_->SetMetadata(session_id_, metadata);
+  session_manager_->SetMetadata(media_session_id_, metadata);
 }
 
 }  // namespace content