Defer media playback in background tabs.

content/public/renderer/content_renderer_client.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/public/renderer/content_renderer_client.h"
 
 #include "content/public/renderer/media_stream_renderer_factory.h"
 #include "media/base/renderer_factory.h"
 #include "third_party/WebKit/public/platform/modules/app_banner/WebAppBannerClient.h"
 #include "third_party/WebKit/public/web/WebPluginPlaceholder.h"
@@ skipping 33 matching lines @@
 bool ContentRendererClient::HasErrorPage(int http_status_code,
                                          std::string* error_domain) {
   return false;
 }
 
 bool ContentRendererClient::ShouldSuppressErrorPage(RenderFrame* render_frame,
                                                     const GURL& url) {
   return false;
 }
 
-void ContentRendererClient::DeferMediaLoad(RenderFrame* render_frame,
-                                           const base::Closure& closure) {
+void ContentRendererClient::DeferMediaLoad(
+    RenderFrame* render_frame,
+    bool has_played_media_before,
+    const base::Closure& closure) {
   closure.Run();
 }
 
 blink::WebMediaStreamCenter*
 ContentRendererClient::OverrideCreateWebMediaStreamCenter(
     blink::WebMediaStreamCenterClient* client) {
   return nullptr;
 }
 
 blink::WebRTCPeerConnectionHandler*
@@ skipping 142 matching lines @@
 std::string ContentRendererClient::GetUserAgentOverrideForURL(const GURL& url) {
   return std::string();
 }
 
 scoped_ptr<blink::WebAppBannerClient>
 ContentRendererClient::CreateAppBannerClient(RenderFrame* render_frame) {
   return nullptr;
 }
 
 }  // namespace content