Win Video Capture: Create an STA |video_capture_thread_| from MediaStreamManager.

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 <vector>
 
 #include "base/bind.h"
@@ skipping 342 matching lines @@
 
 MediaStreamManager::EnumerationCache::EnumerationCache()
     : valid(false) {
 }
 
 MediaStreamManager::EnumerationCache::~EnumerationCache() {
 }
 
 MediaStreamManager::MediaStreamManager()
     : audio_manager_(NULL),
+#if defined(OS_WIN)
+      video_capture_thread_("VideoCaptureThread"),
+#endif
       monitoring_started_(false),
 #if defined(OS_CHROMEOS)
       has_checked_keyboard_mic_(false),
 #endif
       io_loop_(NULL),
       use_fake_ui_(false) {}
 
 MediaStreamManager::MediaStreamManager(media::AudioManager* audio_manager)
     : audio_manager_(audio_manager),
+#if defined(OS_WIN)
+      video_capture_thread_("VideoCaptureThread"),
+#endif
       monitoring_started_(false),
 #if defined(OS_CHROMEOS)
       has_checked_keyboard_mic_(false),
 #endif
       io_loop_(NULL),
       use_fake_ui_(false) {
   DCHECK(audio_manager_);
   memset(active_enumeration_ref_count_, 0,
          sizeof(active_enumeration_ref_count_));
 
@@ skipping 1206 matching lines @@
   io_loop_->AddDestructionObserver(this);
 
   if (CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kUseFakeDeviceForMediaStream)) {
     audio_input_device_manager()->UseFakeDevice();
   }
 
   video_capture_manager_ =
       new VideoCaptureManager(media::VideoCaptureDeviceFactory::CreateFactory(
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI)));
+#if defined(OS_WIN)
+  // Use an STA Video Capture Thread to try to avoid crashes on enumeration of
+  // buggy third party Direct Show modules, http://crbug.com/428958.
+  video_capture_thread_.init_com_with_mta(false);
+  CHECK(video_capture_thread_.Start());
+  video_capture_manager_->Register(this,
+                                   video_capture_thread_.message_loop_proxy());
+#else
   video_capture_manager_->Register(this, device_task_runner_);
+#endif
 }
 
 void MediaStreamManager::Opened(MediaStreamType stream_type,
                                 int capture_session_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DVLOG(1) << "Opened({stream_type = " << stream_type <<  "} "
            << "{capture_session_id = " << capture_session_id << "})";
   // Find the request(s) containing this device and mark it as used.
   // It can be used in several requests since the same device can be
   // requested from the same web page.
@@ skipping 507 matching lines @@
   }
 }
 
 void MediaStreamManager::SetKeyboardMicOnDeviceThread() {
   DCHECK(device_task_runner_->BelongsToCurrentThread());
   audio_manager_->SetHasKeyboardMic();
 }
 #endif
 
 }  // namespace content