Simplify/Cleanup MediaClient

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 03bc138c1444bad1e83de954567f59c4ccbc673d..5264113619caf826df090c6d7aca1bcb5a9dd9a5 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -108,7 +108,6 @@
 #include "content/renderer/media/audio_renderer_mixer_manager.h"
 #include "content/renderer/media/media_stream_center.h"
 #include "content/renderer/media/midi_message_filter.h"
-#include "content/renderer/media/render_media_client.h"
 #include "content/renderer/media/renderer_gpu_video_accelerator_factories.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/net_info_helper.h"
@@ -1199,8 +1198,6 @@ void RenderThreadImpl::InitializeWebKit(
 
   RenderThreadImpl::RegisterSchemes();
 
-  RenderMediaClient::Initialize();
-
   devtools_agent_message_filter_ = new DevToolsAgentFilter();
   AddFilter(devtools_agent_message_filter_.get());