Seperate visualviewportchanged event into scroll and resize events

third_party/WebKit/Source/core/frame/VisualViewport.h

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 207 matching lines @@
     // for viewing websites that are not optimized for mobile devices.
     bool shouldDisableDesktopWorkarounds() const;
 
 private:
     explicit VisualViewport(FrameHost&);
 
     bool visualViewportSuppliesScrollbars() const;
 
     void updateStyleAndLayoutIgnorePendingStylesheets();
 
-    void enqueueChangedEvent();
+    void enqueueScrollEvent();
+    void enqueueResizeEvent();
 
     // GraphicsLayerClient implementation.
     bool needsRepaint(const GraphicsLayer&) const { ASSERT_NOT_REACHED(); return true; }
     IntRect computeInterestRect(const GraphicsLayer*, const IntRect&) const;
     void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect&) const override;
     String debugName(const GraphicsLayer*) const override;
 
     void setupScrollbar(WebScrollbar::Orientation);
     FloatPoint clampOffsetToBoundaries(const FloatPoint&);
 
@@ skipping 21 matching lines @@
     float m_scale;
     IntSize m_size;
     float m_topControlsAdjustment;
     float m_maxPageScale;
     bool m_trackPinchZoomStatsForPage;
 };
 
 } // namespace blink
 
 #endif // VisualViewport_h