Add missing macros includes in media/.

media/cast/common/transport_encryption_handler.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_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
 #define MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
 
 // Helper class to handle encryption for the Cast Transport library.
 #include <string>
 
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "base/threading/non_thread_safe.h"
 
 namespace crypto {
 class Encryptor;
 class SymmetricKey;
 }
 
 namespace media {
@@ skipping 22 matching lines @@
   std::string iv_mask_;
   bool is_activated_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_