blink: Make WebMainThreadScrollingReason wrap the cc enum.

third_party/WebKit/public/platform/WebLayer.h

 /*
  * Copyright (C) 2011 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 14 matching lines @@
 
 #ifndef WebLayer_h
 #define WebLayer_h
 
 #include "WebBlendMode.h"
 #include "WebColor.h"
 #include "WebCommon.h"
 #include "WebCompositorAnimation.h"
 #include "WebDoublePoint.h"
 #include "WebFloatPoint3D.h"
-#include "WebMainThreadScrollingReason.h"
 #include "WebPoint.h"
 #include "WebRect.h"
 #include "WebScrollBlocksOn.h"
 #include "WebSize.h"
 #include "WebString.h"
 #include "WebVector.h"
 
 class SkMatrix44;
 class SkImageFilter;
 
@@ skipping 156 matching lines @@
     virtual bool userScrollableHorizontal() const = 0;
     virtual bool userScrollableVertical() const = 0;
 
     virtual void setHaveWheelEventHandlers(bool) = 0;
     virtual bool haveWheelEventHandlers() const = 0;
 
     virtual void setHaveScrollEventHandlers(bool) = 0;
     virtual bool haveScrollEventHandlers() const = 0;
 
     // Indicates that this layer will always scroll on the main thread for the provided reason.
-    virtual void addMainThreadScrollingReasons(WebMainThreadScrollingReason::WebMainThreadScrollingReason) = 0;
+    virtual void addMainThreadScrollingReasons(uint32_t) = 0;
     // Indicates that the layer could scroll on the compositor thread.
     virtual void clearMainThreadScrollingReasons() = 0;
     virtual bool shouldScrollOnMainThread() const = 0;
 
     virtual void setNonFastScrollableRegion(const WebVector<WebRect>&) = 0;
     virtual WebVector<WebRect> nonFastScrollableRegion() const = 0;
 
     virtual void setTouchEventHandlerRegion(const WebVector<WebRect>&) = 0;
     virtual WebVector<WebRect> touchEventHandlerRegion() const = 0;
 
@@ skipping 37 matching lines @@
     virtual void setElementId(uint64_t) = 0;
     virtual uint64_t elementId() const = 0;
 
     virtual void setCompositorMutableProperties(uint32_t) = 0;
     virtual uint32_t compositorMutableProperties() const = 0;
 };
 
 } // namespace blink
 
 #endif // WebLayer_h