Add missing macros includes in media/.

media/base/keyboard_event_counter.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_BASE_KEYBOARD_EVENT_COUNTER_H_
 #define MEDIA_BASE_KEYBOARD_EVENT_COUNTER_H_
 
 #include <set>
 
+#include "base/macros.h"
 #include "base/synchronization/lock.h"
 #include "media/base/media_export.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 
 namespace media {
 
 // This class tracks the total number of keypresses based on the OnKeyboardEvent
 // calls it receives from the client.
 // Multiple key down events for the same key are counted as one keypress until
@@ skipping 20 matching lines @@
   std::set<ui::KeyboardCode> pressed_keys_;
 
   size_t total_key_presses_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardEventCounter);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_KEYBOARD_EVENT_COUNTER_H_