[Cross-Site Isolation] Migrate entire MediaStream verticals to be per-RenderFrame.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 25a9688650725d81b869f94db80824f9ea56ea04..d1e0e8bbc76aab87d6f69c7f7d98498256819b5b 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -87,7 +87,6 @@
 #include "content/renderer/input/input_handler_manager.h"
 #include "content/renderer/internal_document_state_data.h"
 #include "content/renderer/media/audio_device_factory.h"
-#include "content/renderer/media/media_stream_dispatcher.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 #include "content/renderer/memory_benchmarking_extension.h"
@@ -726,7 +725,6 @@ RenderViewImpl::RenderViewImpl(RenderViewImplParams* params)
 #endif
       has_scrolled_focused_editable_node_into_rect_(false),
       speech_recognition_dispatcher_(NULL),
-      media_stream_dispatcher_(NULL),
       browser_plugin_manager_(NULL),
       devtools_agent_(NULL),
       accessibility_mode_(AccessibilityModeOff),
@@ -849,11 +847,6 @@ void RenderViewImpl::Initialize(RenderViewImplParams* params) {
 
   OnSetRendererPrefs(params->renderer_prefs);
 
-#if defined(ENABLE_WEBRTC)
-  if (!media_stream_dispatcher_)
-    media_stream_dispatcher_ = new MediaStreamDispatcher(this);
-#endif
-
   new MHTMLGenerator(this);
 #if defined(OS_MACOSX)
   new TextInputClientObserver(this);