Rewrite references to "wtf/" to "platform/wtf/" in core/layout.

third_party/WebKit/Source/core/layout/LayoutFlowThread.h

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
@@ skipping 14 matching lines @@
  * TORT (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 LayoutFlowThread_h
 #define LayoutFlowThread_h
 
 #include "core/CoreExport.h"
 #include "core/layout/LayoutBlockFlow.h"
-#include "wtf/ListHashSet.h"
+#include "platform/wtf/ListHashSet.h"
 
 namespace blink {
 
 class LayoutMultiColumnSet;
 
 typedef ListHashSet<LayoutMultiColumnSet*> LayoutMultiColumnSetList;
 
 // Layout state for multicol. To be stored when laying out a block child, so
 // that we can roll back to the initial state if we need to re-lay out said
 // block child.
@@ skipping 174 matching lines @@
 struct ValueToString<LayoutMultiColumnSet*> {
   static String ToString(const LayoutMultiColumnSet* value) {
     return String::Format("%p", value);
   }
 };
 #endif
 
 }  // namespace blink
 
 #endif  // LayoutFlowThread_h