Switch to standard integer types in media/, take 2.

media/base/test_helpers.h

 // 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.
 
 #ifndef MEDIA_BASE_TEST_HELPERS_H_
 #define MEDIA_BASE_TEST_HELPERS_H_
 
+#include <stddef.h>
+
 #include "base/callback.h"
 #include "base/macros.h"
 #include "media/base/channel_layout.h"
 #include "media/base/media_log.h"
 #include "media/base/pipeline_status.h"
 #include "media/base/sample_format.h"
 #include "media/base/video_decoder_config.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "ui/gfx/geometry/size.h"
 
@@ skipping 122 matching lines @@
   void RecordACalled();
   void RecordBCalled();
 
  private:
   bool expecting_b_;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_TEST_HELPERS_H_