Rewrite references to "wtf/" to "platform/wtf/" in platform/graphics.

third_party/WebKit/Source/platform/graphics/CanvasMetrics.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 CanvasMetrics_h
 #define CanvasMetrics_h
 
 #include "platform/PlatformExport.h"
-#include "wtf/Allocator.h"
+#include "platform/wtf/Allocator.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT CanvasMetrics {
   STATIC_ONLY(CanvasMetrics);
 
  public:
   enum CanvasContextUsage {
     CanvasCreated = 0,
     GPUAccelerated2DCanvasImageBufferCreated = 1,
     DisplayList2DCanvasImageBufferCreated = 2,
     Unaccelerated2DCanvasImageBufferCreated = 3,
     Accelerated2DCanvasGPUContextLost = 4,
     Unaccelerated2DCanvasImageBufferCreationFailed = 5,
     GPUAccelerated2DCanvasImageBufferCreationFailed = 6,
     DisplayList2DCanvasFallbackToRaster = 7,
     GPUAccelerated2DCanvasDeferralDisabled = 8,
     GPUAccelerated2DCanvasSurfaceCreationFailed = 9,
     NumberOfUsages
   };
 
   static void countCanvasContextUsage(const CanvasContextUsage);
 };
 
 }  // namespace blink
 
 #endif  // CanvasMetrics_h