Cleanup: IWYU for base/gtest_prod_util.h.

chrome/browser/media/router/media_route.h

 // Copyright 2015 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 CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTE_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTE_H_
 
 #include <string>
 
 #include "base/containers/small_map.h"
-#include "base/gtest_prod_util.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/media/router/media_sink.h"
 #include "chrome/browser/media/router/media_source.h"
 #include "content/public/browser/presentation_session.h"
 #include "url/gurl.h"
 
 namespace media_router {
 
 // MediaRoute objects contain the status and metadata of a routing
@@ skipping 80 matching lines @@
  private:
   base::SmallMap<std::map<MediaRoute::Id, content::PresentationSessionInfo>>
       route_id_to_presentation_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRouteIdToPresentationSessionMapping);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTE_H_