Add missing macros includes in media/.

media/cast/sender/vp8_encoder.h

 // 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.
 
 #ifndef MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_
 #define MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_
 
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/sender/software_video_encoder.h"
 #include "third_party/libvpx_new/source/libvpx/vpx/vpx_encoder.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace media {
 class VideoFrame;
 }
@@ skipping 57 matching lines @@
   // TODO(miu): Remove after discovering cause.  http://crbug.com/519022
   bool has_seen_zero_length_encoded_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(Vp8Encoder);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_