Eliminate video capture thread in renderer

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 6ca739bbbe9b44c09fde4bc4cf185151154ce19d..7683589841c8b8289ee4e574b6f7b1c8eebaafae 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -353,7 +353,7 @@ void RenderThreadImpl::Init() {
   db_message_filter_ = new DBMessageFilter();
   AddFilter(db_message_filter_.get());
 
-  vc_manager_ = new VideoCaptureImplManager();
+  vc_manager_.reset(new VideoCaptureImplManager());
   AddFilter(vc_manager_->video_capture_message_filter());
 
 #if defined(ENABLE_WEBRTC)
@@ -367,7 +367,7 @@ void RenderThreadImpl::Init() {
   webrtc_identity_service_.reset(new WebRTCIdentityService());
 
   media_stream_factory_.reset(new MediaStreamDependencyFactory(
-      vc_manager_.get(), p2p_socket_dispatcher_.get()));
+      p2p_socket_dispatcher_.get()));
   AddObserver(media_stream_factory_.get());
 #endif  // defined(ENABLE_WEBRTC)