Split out audio debug recording from RenderProcessHostImpl.

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 cb49a7d345d79285db5aee4328825497da60c1b1..a1e606e608880cdaa1b523d870f23dfbc5aac815 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -107,6 +107,7 @@
 #include "content/renderer/input/input_handler_manager.h"
 #include "content/renderer/input/main_thread_input_event_filter.h"
 #include "content/renderer/media/aec_dump_message_filter.h"
+#include "content/renderer/media/audio_debug_recorder.h"
 #include "content/renderer/media/audio_input_message_filter.h"
 #include "content/renderer/media/audio_message_filter.h"
 #include "content/renderer/media/audio_renderer_mixer_manager.h"
@@ -696,6 +697,8 @@ void RenderThreadImpl::Init() {
   peer_connection_factory_.reset(
       new PeerConnectionDependencyFactory(p2p_socket_dispatcher_.get()));
 
+  audio_debug_recorder_ = new AudioDebugRecorder(GetServiceRegistry());
+
   aec_dump_message_filter_ = new AecDumpMessageFilter(
       GetIOMessageLoopProxy(), message_loop()->task_runner(),
       peer_connection_factory_.get());