Simplify/Cleanup MediaClient

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index af761dcb5b2b5b1a0549e096fb8ad7aa82879132..dd92412de3db59dc89a077e25695dc6c179bda78 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -88,6 +88,7 @@
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/renderer/content_media_client.h"
 #include "content/public/renderer/plugin_instance_throttler.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
@@ -96,6 +97,7 @@
 #include "extensions/common/constants.h"
 #include "extensions/features/features.h"
 #include "ipc/ipc_sync_channel.h"
+#include "media/base/media_client.h"
 #include "media/media_features.h"
 #include "net/base/net_errors.h"
 #include "ppapi/c/private/ppb_pdf.h"
@@ -474,6 +476,8 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   leak_detector_remote_client_.reset(new LeakDetectorRemoteClient());
   thread->AddObserver(leak_detector_remote_client_.get());
 #endif
+
+  ::media::SetMediaClient(new ::content::ContentMediaClient(this));
 }
 
 void ChromeContentRendererClient::RenderFrameCreated(