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

content/renderer/media/webrtc_local_audio_renderer.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/renderer/media/webrtc_local_audio_renderer.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/synchronization/lock.h"
 #include "content/renderer/media/audio_device_factory.h"
 #include "content/renderer/media/media_stream_dispatcher.h"
 #include "content/renderer/media/webrtc_audio_capturer.h"
-#include "content/renderer/render_view_impl.h"
+#include "content/renderer/render_frame_impl.h"
 #include "media/audio/audio_output_device.h"
 #include "media/base/audio_bus.h"
 #include "media/base/audio_fifo.h"
 
 namespace content {
 
 namespace {
 
 enum LocalRendererSinkStates {
   kSinkStarted = 0,
@@ skipping 233 matching lines @@
                             kSinkStarted, kSinkStatesMax);
 }
 
 void WebRtcLocalAudioRenderer::ReconfigureSink(
     const media::AudioParameters& params) {
   DCHECK(message_loop_->BelongsToCurrentThread());
 
   DVLOG(1) << "WebRtcLocalAudioRenderer::ReconfigureSink()";
 
   int implicit_ducking_effect = 0;
-  RenderViewImpl* render_view =
-      RenderViewImpl::FromRoutingID(source_render_view_id_);
-  if (render_view &&
-      render_view->media_stream_dispatcher() &&
-      render_view->media_stream_dispatcher()->IsAudioDuckingActive()) {
+  RenderFrameImpl* const frame =
+      RenderFrameImpl::FromRoutingID(source_render_frame_id_);
+  MediaStreamDispatcher* const dispatcher = frame ?
+      frame->GetMediaStreamDispatcher() : NULL;
+  if (dispatcher && dispatcher->IsAudioDuckingActive()) {
     DVLOG(1) << "Forcing DUCKING to be ON for output";
     implicit_ducking_effect = media::AudioParameters::DUCKING;
   } else {
     DVLOG(1) << "DUCKING not forced ON for output";
   }
 
   if (source_params_ == params)
     return;
 
   // Reset the |source_params_|, |sink_params_| and |loopback_fifo_| to match
@@ skipping 43 matching lines @@
     sink_->Stop();
     sink_started_ = false;
   }
 
   sink_ = AudioDeviceFactory::NewOutputDevice(source_render_view_id_,
                                               source_render_frame_id_);
   MaybeStartSink();
 }
 
 }  // namespace content