Mojo interfaces needed for switching audio rendering stream creation and closing from IPC to Mojo

content/renderer/media/audio_message_filter.cc

Index: content/renderer/media/audio_message_filter.cc
diff --git a/content/renderer/media/audio_message_filter.cc b/content/renderer/media/audio_message_filter.cc
index 9e7322d128e65f0d5f9507a544c8cf01943e7d16..baaccf12f848e3ab6d65e58fe1ddcdb842ac68e0 100644
--- a/content/renderer/media/audio_message_filter.cc
+++ b/content/renderer/media/audio_message_filter.cc
@@ -10,6 +10,7 @@
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "content/common/media/audio_messages.h"
+#include "content/renderer/media/audio_output_client.h"
 #include "content/renderer/media/webrtc_logging.h"
 #include "content/renderer/render_thread_impl.h"
 #include "ipc/ipc_logging.h"
@@ -105,9 +106,11 @@ void AudioMessageFilter::AudioOutputIPCImpl::CreateStream(
   DCHECK(!stream_created_);
   if (stream_id_ == kStreamIDNotSet)
     stream_id_ = filter_->delegates_.Add(delegate);
-
-  filter_->Send(
-      new AudioHostMsg_CreateStream(stream_id_, render_frame_id_, params));
+  // TODO(rchtara): This is temporary and is going to be removed in future cls.
+  // The plan is to try to completely remove AudioMessageFilter and move all

[Henrik Grunell, 2016/04/22 08:23:04]

You could put it as:
"This is temporary. In soon upcoming CLs AudioMessageFilter and
AudioMessageFilter::AudioOutputIPCImpl will be removed and replaced by
AudioOutputClient.

[rchtara, 2016/04/29 12:54:46]

Done.

+  // the logic inside it to AudioOutputClient.
+  filter_->audio_output_client_->CreateStream(stream_id_, render_frame_id_,
+                                              params);
   stream_created_ = true;
 }
 
@@ -124,7 +127,10 @@ void AudioMessageFilter::AudioOutputIPCImpl::PauseStream() {
 void AudioMessageFilter::AudioOutputIPCImpl::CloseStream() {
   DCHECK(filter_->io_task_runner_->BelongsToCurrentThread());
   DCHECK_NE(stream_id_, kStreamIDNotSet);
-  filter_->Send(new AudioHostMsg_CloseStream(stream_id_));
+  // TODO(rchtara): This is temporary and is going to be removed in future cls.
+  // The plan is to try to completely remove AudioMessageFilter and move all
+  // the logic inside it to AudioOutputClient.
+  filter_->audio_output_client_->CloseStream(stream_id_);
   filter_->delegates_.Remove(stream_id_);
   stream_id_ = kStreamIDNotSet;
   stream_created_ = false;
@@ -149,7 +155,6 @@ bool AudioMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AudioMessageFilter, message)
     IPC_MESSAGE_HANDLER(AudioMsg_NotifyDeviceAuthorized, OnDeviceAuthorized)
-    IPC_MESSAGE_HANDLER(AudioMsg_NotifyStreamCreated, OnStreamCreated)
     IPC_MESSAGE_HANDLER(AudioMsg_NotifyStreamStateChanged, OnStreamStateChanged)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()