Rename functions in video frame to comply with Style Guide

media/base/mac/video_frame_mac.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 "media/base/mac/video_frame_mac.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 17 matching lines @@
   reinterpret_cast<const VideoFrame*>(frame_ref)->Release();
 }
 
 }  // namespace
 
 MEDIA_EXPORT base::ScopedCFTypeRef<CVPixelBufferRef>
 WrapVideoFrameInCVPixelBuffer(const VideoFrame& frame) {
   base::ScopedCFTypeRef<CVPixelBufferRef> pixel_buffer;
 
   // If the frame is backed by a pixel buffer, just return that buffer.
-  if (frame.cv_pixel_buffer()) {
-    pixel_buffer.reset(frame.cv_pixel_buffer(), base::scoped_policy::RETAIN);
+  if (frame.CvPixelBuffer()) {
+    pixel_buffer.reset(frame.CvPixelBuffer(), base::scoped_policy::RETAIN);
     return pixel_buffer;
   }
 
   // VideoFrame only supports YUV formats and most of them are 'YVU' ordered,
   // which CVPixelBuffer does not support. This means we effectively can only
   // represent I420 and NV12 frames. In addition, VideoFrame does not carry
   // colorimetric information, so this function assumes standard video range
   // and ITU Rec 709 primaries.
   const VideoPixelFormat video_frame_format = frame.format();
   OSType cv_format;
@@ skipping 56 matching lines @@
                         kCVImageBufferTransferFunction_ITU_R_709_2,
                         kCVAttachmentMode_ShouldPropagate);
   CVBufferSetAttachment(pixel_buffer, kCVImageBufferYCbCrMatrixKey,
                         kCVImageBufferYCbCrMatrix_ITU_R_709_2,
                         kCVAttachmentMode_ShouldPropagate);
 
   return pixel_buffer;
 }
 
 }  // namespace media