Add a ChromeOS implementation of VideoCaptureDevice

media/video/capture/mac/video_capture_device_factory_mac.mm

 // Copyright 2014 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/video/capture/mac/video_capture_device_factory_mac.h"
 
 #import "media/video/capture/mac/avfoundation_glue.h"
 #include "media/video/capture/mac/video_capture_device_mac.h"
 #import "media/video/capture/mac/video_capture_device_avfoundation_mac.h"
 #import "media/video/capture/mac/video_capture_device_qtkit_mac.h"
 
 namespace media {
 
 // Some devices are not correctly supported in AVFoundation, f.i. Blackmagic,
 // see http://crbug.com/347371. The devices are identified by USB Vendor ID and
 // by a characteristic substring of the name, usually the vendor's name.
 const struct NameAndVid {
   const char* vid;
   const char* name;
 } kBlacklistedCameras[] = { { "a82c", "Blackmagic" } };
 
 // In device identifiers, the USB VID and PID are stored in 4 bytes each.
 const size_t kVidPidSize = 4;
 
 VideoCaptureDeviceFactoryMac::VideoCaptureDeviceFactoryMac() {
   thread_checker_.DetachFromThread();
 }
 
 scoped_ptr<VideoCaptureDevice> VideoCaptureDeviceFactoryMac::Create(
+    scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
     const VideoCaptureDevice::Name& device_name) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_NE(device_name.capture_api_type(),
             VideoCaptureDevice::Name::API_TYPE_UNKNOWN);
 
   VideoCaptureDevice::Names device_names;
   GetDeviceNames(&device_names);
   VideoCaptureDevice::Names::iterator it = device_names.begin();
   for (; it != device_names.end(); ++it) {
     if (it->id() == device_name.id())
@@ skipping 76 matching lines @@
   if (device.capture_api_type() == VideoCaptureDevice::Name::AVFOUNDATION) {
     DVLOG(1) << "Enumerating video capture capabilities, AVFoundation";
     [VideoCaptureDeviceAVFoundation getDevice:device
                              supportedFormats:supported_formats];
   } else {
     NOTIMPLEMENTED();
   }
 }
 
 }  // namespace media