Make platform/graphics to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/graphics/StrokeData.h

Index: third_party/WebKit/Source/platform/graphics/StrokeData.h
diff --git a/third_party/WebKit/Source/platform/graphics/StrokeData.h b/third_party/WebKit/Source/platform/graphics/StrokeData.h
index 4dccbf78c1446b67899d84311d4ad3dd57b7bea6..a126214d3d7b7b87652d7ad79793fb0c7a84997d 100644
--- a/third_party/WebKit/Source/platform/graphics/StrokeData.h
+++ b/third_party/WebKit/Source/platform/graphics/StrokeData.h
@@ -36,6 +36,7 @@
 #include "platform/graphics/Pattern.h"
 #include "third_party/skia/include/core/SkColorPriv.h"
 #include "third_party/skia/include/effects/SkDashPathEffect.h"
+#include "wtf/Allocator.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
@@ -43,7 +44,8 @@ namespace blink {
 
 // Encapsulates stroke geometry information.
 // It is pulled out of GraphicsContextState to enable other methods to use it.
-class PLATFORM_EXPORT StrokeData {
+class PLATFORM_EXPORT StrokeData final {
+    DISALLOW_NEW();
 public:
     StrokeData()
         : m_style(SolidStroke)