IPC->mojo of audio_renderer_host

content/renderer/media/audio_device_factory.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/audio_device_factory.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "build/build_config.h"
 #include "content/common/content_constants_internal.h"
 #include "content/renderer/media/audio_input_message_filter.h"
-#include "content/renderer/media/audio_message_filter.h"
+#include "content/renderer/media/audio_output_ipc_factory.h"
 #include "content/renderer/media/audio_renderer_mixer_manager.h"
 #include "content/renderer/render_thread_impl.h"
 #include "media/audio/audio_input_device.h"
 #include "media/audio/audio_output_device.h"
 #include "media/base/audio_renderer_mixer_input.h"
 #include "media/base/media_switches.h"
+#include "media/media_features.h"

[Henrik Grunell, 2016/09/01 15:09:07]

Needed?

 #include "url/origin.h"
 
 namespace content {
 
 // static
 AudioDeviceFactory* AudioDeviceFactory::factory_ = NULL;
 
 namespace {
 #if defined(OS_WIN)
 // Due to driver deadlock issues on Windows (http://crbug/422522) there is a
 // chance device authorization response is never received from the browser side.
 // In this case we will time out, to avoid renderer hang forever waiting for
 // device authorization (http://crbug/615589). This will result in "no audio".
 const int64_t kMaxAuthorizationTimeoutMs = 1000;
 #else
 const int64_t kMaxAuthorizationTimeoutMs = 0;  // No timeout.
 #endif  // defined(OS_WIN)
 
 scoped_refptr<media::AudioOutputDevice> NewOutputDevice(
     int render_frame_id,
     int session_id,
     const std::string& device_id,
     const url::Origin& security_origin) {
-  AudioMessageFilter* const filter = AudioMessageFilter::Get();
+  const scoped_refptr<AudioOutputIPCFactory> factory =
+      AudioOutputIPCFactory::Get();
   scoped_refptr<media::AudioOutputDevice> device(new media::AudioOutputDevice(
-      filter->CreateAudioOutputIPC(render_frame_id), filter->io_task_runner(),
+      factory->CreateAudioOutputIPC(render_frame_id), factory->io_task_runner(),

[Henrik Grunell, 2016/09/01 15:09:07]

Could AudioOutputDevice access the stream directly?

       session_id, device_id, security_origin,
       // Set authorization request timeout at 80% of renderer hung timeout, but
       // no more than kMaxAuthorizationTimeout.
       base::TimeDelta::FromMilliseconds(std::min(kHungRendererDelayMs * 8 / 10,
                                                  kMaxAuthorizationTimeoutMs))));
   device->RequestDeviceAuthorization();
   return device;
 }
 
 // This is where we decide which audio will go to mixers and which one to
@@ skipping 154 matching lines @@
                                                device_id, security_origin);
     if (sink)
       return sink;
   }
 
   return NewOutputDevice(render_frame_id, session_id, device_id,
                          security_origin);
 }
 
 }  // namespace content