Factor out authorization from AudioRendererHost.

content/browser/renderer_host/media/audio_input_device_manager.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/browser/renderer_host/media/audio_input_device_manager.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 130 matching lines @@
   SCOPED_UMA_HISTOGRAM_TIMER(
       "Media.AudioInputDeviceManager.OpenOnDeviceThreadTime");
   DCHECK(IsOnDeviceThread());
 
   StreamDeviceInfo out(info.device.type, info.device.name, info.device.id, 0, 0,
                        0);
   out.session_id = session_id;
 
   MediaStreamDevice::AudioDeviceParameters& input_params = out.device.input;
 
+  // Add preferred output device information if a matching output device
+  // exists.
+  out.device.matched_output_device_id =
+      audio_manager_->GetAssociatedOutputDeviceID(info.device.id);
+
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kUseFakeDeviceForMediaStream)) {
     // Don't need to query the hardware information if using fake device.
     input_params.sample_rate = 44100;
     input_params.channel_layout = media::CHANNEL_LAYOUT_STEREO;
+    if (!out.device.matched_output_device_id.empty()) {
+      out.device.matched_output.sample_rate = 44100;
+      out.device.matched_output.channel_layout = media::CHANNEL_LAYOUT_STEREO;
+    }
   } else {
     // Get the preferred sample rate and channel configuration for the
     // audio device.
     media::AudioParameters params =
         audio_manager_->GetInputStreamParameters(info.device.id);
     input_params.sample_rate = params.sample_rate();
     input_params.channel_layout = params.channel_layout();
     input_params.frames_per_buffer = params.frames_per_buffer();
     input_params.effects = params.effects();
     input_params.mic_positions = params.mic_positions();
-
-    // Add preferred output device information if a matching output device
-    // exists.
-    out.device.matched_output_device_id =
-        audio_manager_->GetAssociatedOutputDeviceID(info.device.id);
     if (!out.device.matched_output_device_id.empty()) {
       params = audio_manager_->GetOutputStreamParameters(
           out.device.matched_output_device_id);
       MediaStreamDevice::AudioDeviceParameters& matched_output_params =
           out.device.matched_output;
       matched_output_params.sample_rate = params.sample_rate();
       matched_output_params.channel_layout = params.channel_layout();
       matched_output_params.frames_per_buffer = params.frames_per_buffer();
     }
   }
@@ skipping 43 matching lines @@
 #if defined(OS_CHROMEOS)
 void AudioInputDeviceManager::SetKeyboardMicStreamActiveOnUIThread(
     bool active) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   chromeos::CrasAudioHandler::Get()->SetKeyboardMicActive(active);
 }
 #endif
 
 
 }  // namespace content