Move CrossThreadCopier from platform/ to wtf/

third_party/WebKit/Source/platform/geometry/IntSize.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 12 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef IntSize_h
 #define IntSize_h
 
 #include "platform/PlatformExport.h"
 #include "public/platform/WebCommon.h"
 #include "wtf/Allocator.h"
+#include "wtf/CrossThreadCopier.h"
 #include "wtf/Forward.h"
 
 #if OS(MACOSX)
 typedef struct CGSize CGSize;
 
 #ifdef __OBJC__
 #import <Foundation/Foundation.h>
 #endif
 #endif
 
@@ skipping 132 matching lines @@
     return a.width() == b.width() && a.height() == b.height();
 }
 
 inline bool operator!=(const IntSize& a, const IntSize& b)
 {
     return a.width() != b.width() || a.height() != b.height();
 }
 
 } // namespace blink
 
+namespace WTF {
+
+template <>
+struct CrossThreadCopier<blink::IntSize> : public CrossThreadCopierPassThrough<blink::IntSize> {
+    STATIC_ONLY(CrossThreadCopier);
+};
+
+} // namespace WTF
+
 #endif // IntSize_h