Generate separate files for union type containers

third_party/WebKit/Source/modules/encryptedmedia/MediaKeyStatusMap.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 MediaKeyStatusMap_h
 #define MediaKeyStatusMap_h
 
 #include "bindings/core/v8/Maplike.h"
 #include "bindings/core/v8/ScriptWrappable.h"
-#include "bindings/core/v8/UnionTypesCore.h"
 #include "core/dom/DOMArrayPiece.h"
 #include "platform/heap/Heap.h"
 
 namespace blink {
 
 class ExceptionState;
 class Iterator;
 class ScriptState;
 class WebData;
 
@@ skipping 29 matching lines @@
     bool getMapEntry(ScriptState*, const ArrayBufferOrArrayBufferView&, String&, ExceptionState&) override;
 
     size_t indexOf(const DOMArrayPiece& key) const;
 
     MediaKeyStatusMapType m_entries;
 };
 
 } // namespace blink
 
 #endif // MediaKeyStatusMap_h