Adds COM init to AudioManager thread for Windows

media/audio/win/audio_low_latency_output_win.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 "media/audio/win/audio_low_latency_output_win.h"
 
 #include <Functiondiscoverykeys_devpkey.h>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 368 matching lines @@
 AUDCLNT_SHAREMODE WASAPIAudioOutputStream::GetShareMode() {
   const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
   if (cmd_line->HasSwitch(switches::kEnableExclusiveAudio))
     return AUDCLNT_SHAREMODE_EXCLUSIVE;
   return AUDCLNT_SHAREMODE_SHARED;
 }
 
 WASAPIAudioOutputStream::WASAPIAudioOutputStream(AudioManagerWin* manager,
                                                  const AudioParameters& params,
                                                  ERole device_role)
-    : com_init_(ScopedCOMInitializer::kMTA),
-      creating_thread_id_(base::PlatformThread::CurrentId()),
+    : creating_thread_id_(base::PlatformThread::CurrentId()),
       manager_(manager),
       opened_(false),
       started_(false),
       restart_rendering_mode_(false),
       volume_(1.0),
       endpoint_buffer_size_frames_(0),
       device_role_(device_role),
       share_mode_(GetShareMode()),
       client_channel_count_(params.channels()),
       num_written_frames_(0),
       source_(NULL),
       audio_bus_(AudioBus::Create(params)) {
-  CHECK(com_init_.succeeded());
   DCHECK(manager_);
 
   // Load the Avrt DLL if not already loaded. Required to support MMCSS.
   bool avrt_init = avrt::Initialize();
   DCHECK(avrt_init) << "Failed to load the avrt.dll";
 
   if (share_mode_ == AUDCLNT_SHAREMODE_EXCLUSIVE) {
     VLOG(1) << ">> Note that EXCLUSIVE MODE is enabled <<";
   }
 
@@ skipping 1013 matching lines @@
   // are now re-initiated and it is now possible to re-start audio rendering.
 
   // Start rendering again using the new default audio endpoint.
   hr = audio_client_->Start();
 
   restart_rendering_mode_ = false;
   return SUCCEEDED(hr);
 }
 
 }  // namespace media