Fix COM initialization on media thread.

content/browser/renderer_host/media/media_stream_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/media_stream_manager.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/rand_util.h"
+#include "base/win/scoped_com_initializer.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/media_stream_device_settings.h"
 #include "content/browser/renderer_host/media/media_stream_requester.h"
 #include "content/browser/renderer_host/media/video_capture_manager.h"
 #include "content/common/media/media_stream_options.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/media_observer.h"
 #include "googleurl/src/gurl.h"
 
@@ skipping 26 matching lines @@
   if (stream_type == content::MEDIA_STREAM_DEVICE_TYPE_VIDEO_CAPTURE &&
       options.video) {
     return true;
   } else if (stream_type == content::MEDIA_STREAM_DEVICE_TYPE_AUDIO_CAPTURE &&
              options.audio) {
     return true;
   }
   return false;
 }
 
+DeviceThread::DeviceThread(const char* name)
+    : base::Thread(name) {
+}
+
+DeviceThread::~DeviceThread() {
+}
+
+void DeviceThread::Init() {
+  using base::win::ScopedCOMInitializer;
+  // Enter the multi-threaded apartment.
+  com_initializer_.reset(new ScopedCOMInitializer(ScopedCOMInitializer::kMTA));
+}
+
+void DeviceThread::CleanUp() {
+  com_initializer_.reset();
+}
+
 // TODO(xians): Merge DeviceRequest with MediaStreamRequest.
 struct MediaStreamManager::DeviceRequest {
   enum RequestState {
     kNotRequested = 0,
     kRequested,
     kPendingApproval,
     kOpening,
     kDone,
     kError
   };
@@ skipping 614 matching lines @@
   if (stream_type == content::MEDIA_STREAM_DEVICE_TYPE_VIDEO_CAPTURE) {
     return video_capture_manager();
   } else if (stream_type == content::MEDIA_STREAM_DEVICE_TYPE_AUDIO_CAPTURE) {
     return audio_input_device_manager();
   }
   NOTREACHED();
   return NULL;
 }
 
 }  // namespace media_stream