Refactored pixel format resize operations in media/video/capture into a function called VideoCaptu…

media/video/capture/file_video_capture_device.h

 // Copyright 2013 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.
 
 #ifndef MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_
 #define MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_
 
 #include <string>
 
 #include "base/files/file.h"
@@ skipping 25 matching lines @@
 
   // VideoCaptureDevice implementation, class methods.
   ~FileVideoCaptureDevice() override;
   void AllocateAndStart(const VideoCaptureParams& params,
                         scoped_ptr<VideoCaptureDevice::Client> client) override;
   void StopAndDeAllocate() override;
 
  private:
   // Returns size in bytes of an I420 frame, not including possible paddings,
   // defined by |capture_format_|.
-  int CalculateFrameSize();
+  int CalculateFrameSize() const;
 
   // Called on the |capture_thread_|.
   void OnAllocateAndStart(const VideoCaptureParams& params,
                           scoped_ptr<Client> client);
   void OnStopAndDeAllocate();
   void OnCaptureTask();
 
   // |thread_checker_| is used to check that destructor, AllocateAndStart() and
   // StopAndDeAllocate() are called in the correct thread that owns the object.
   base::ThreadChecker thread_checker_;
@@ skipping 10 matching lines @@
   int frame_size_;
   int64 current_byte_index_;
   int64 first_frame_byte_index_;
 
   DISALLOW_COPY_AND_ASSIGN(FileVideoCaptureDevice);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_