Subject .mm files to the header sorting presubmit

media/video/capture/mac/video_capture_device_decklink_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_decklink_mac.h"
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
+#include "base/strings/sys_string_conversions.h"
 #include "base/synchronization/lock.h"
-#include "base/strings/sys_string_conversions.h"
 #include "third_party/decklink/mac/include/DeckLinkAPI.h"
 
 namespace {
 
 // DeckLink SDK uses ScopedComPtr-style APIs. Chrome ScopedComPtr is only
 // available for Windows builds. This is a verbatim knock-off of the needed
 // parts of base::win::ScopedComPtr<> for ref counting.
 template <class T>
 class ScopedDeckLinkPtr : public scoped_refptr<T> {
  private:
@@ skipping 453 matching lines @@
   if (decklink_capture_delegate_.get())
     decklink_capture_delegate_->AllocateAndStart(params);
 }
 
 void VideoCaptureDeviceDeckLinkMac::StopAndDeAllocate() {
   if (decklink_capture_delegate_.get())
     decklink_capture_delegate_->StopAndDeAllocate();
 }
 
 } // namespace media