Add metrics to track the duration of tracks received over a PeerConnection.

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 135 matching lines @@
 
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
 #include "content/common/font_cache_dispatcher_win.h"
 #include "content/common/sandbox_win.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #endif
 
 #if defined(ENABLE_WEBRTC)
 #include "content/browser/media/webrtc_internals.h"
+#include "content/browser/renderer_host/media/media_stream_track_metrics_host.h"
 #include "content/browser/renderer_host/media/webrtc_identity_service_host.h"
 #include "content/common/media/media_stream_messages.h"
 #endif
 
 #include "third_party/skia/include/core/SkBitmap.h"
 
 extern bool g_exited_main_message_loop;
 
 static const char* kSiteProcessMapKeyName = "content_site_process_map";
 
@@ skipping 534 matching lines @@
   AddFilter(new WebRTCIdentityServiceHost(
       GetID(), storage_partition_impl_->GetWebRTCIdentityStore()));
   peer_connection_tracker_host_ = new PeerConnectionTrackerHost(GetID());
   AddFilter(peer_connection_tracker_host_.get());
   AddFilter(new MediaStreamDispatcherHost(
       GetID(),
       browser_context->GetResourceContext()->GetMediaDeviceIDSalt(),
       media_stream_manager));
   AddFilter(
       new DeviceRequestMessageFilter(resource_context, media_stream_manager));
+  AddFilter(new MediaStreamTrackMetricsHost());
 #endif
 #if defined(ENABLE_PLUGINS)
   AddFilter(new PepperRendererConnection(GetID()));
 #endif
 #if defined(ENABLE_INPUT_SPEECH)
   AddFilter(new InputTagSpeechDispatcherHost(
       IsGuest(), GetID(), storage_partition_impl_->GetURLRequestContext()));
 #endif
   AddFilter(new SpeechRecognitionDispatcherHost(
       IsGuest(), GetID(), storage_partition_impl_->GetURLRequestContext()));
@@ skipping 1392 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content