Fix TODO comments for the mac media capture part

media/video/capture/mac/video_capture_device_mac.mm

 // Copyright (c) 2011 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_mac.h"
 
 #import <QTKit/QTKit.h>
 
 #include "base/logging.h"
 #include "base/time.h"
 #include "media/video/capture/mac/video_capture_device_qtkit_mac.h"
 
 namespace media {
 
 void VideoCaptureDevice::GetDeviceNames(Names* device_names) {
   // Loop through all available devices and add to |device_names|.
   device_names->clear();
 
-  // TODO(mflodman) Return name and id as NSArray* instead of QTCaptureDevice*.
-  for (QTCaptureDevice* device in [VideoCaptureDeviceQTKit deviceNames]) {
+  NSDictionary* capture_devices = [VideoCaptureDeviceQTKit deviceNames];
+  for (NSString* key in capture_devices) {
     Name name;
-    NSString* qt_device_name = [device localizedDisplayName];
-    name.device_name = [qt_device_name UTF8String];
-    NSString* qt_unique_id = [device uniqueID];
-    name.unique_id = [qt_unique_id UTF8String];
+    name.device_name = [[capture_devices valueForKey:key] UTF8String];
+    name.unique_id = [key UTF8String];
     device_names->push_back(name);
   }
 }
 
 VideoCaptureDevice* VideoCaptureDevice::Create(const Name& device_name) {
   VideoCaptureDeviceMac* capture_device =
       new VideoCaptureDeviceMac(device_name);
   if (!capture_device->Init()) {
     LOG(ERROR) << "Could not initialize VideoCaptureDevice.";
     delete capture_device;
@@ skipping 101 matching lines @@
                                      base::Time::Now());
 }
 
 void VideoCaptureDeviceMac::SetErrorState(const std::string& reason) {
   DLOG(ERROR) << reason;
   state_ = kError;
   observer_->OnError();
 }
 
 } // namespace media