Avoid calling updateAllLifecyclePhasesExceptPaint in SVGImage if not needed.

third_party/WebKit/Source/platform/Widget.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora Ltd.  All rights reserved.
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 45 matching lines @@
     int y() const { return frameRect().y(); }
     int width() const { return frameRect().width(); }
     int height() const { return frameRect().height(); }
     IntSize size() const { return frameRect().size(); }
     IntPoint location() const { return frameRect().location(); }
 
     virtual void setFrameRect(const IntRect& frame) { m_frame = frame; }
     const IntRect& frameRect() const { return m_frame; }
     IntRect boundsRect() const { return IntRect(0, 0, width(),  height()); }
 
-    void resize(int w, int h) { setFrameRect(IntRect(x(), y(), w, h)); }
-    void resize(const IntSize& s) { setFrameRect(IntRect(location(), s)); }
+    // These return false if the resize was a no-op.
+    bool resize(int w, int h);
+    bool resize(const IntSize&);
 
     virtual void paint(GraphicsContext&, const CullRect&) const { }
     void invalidate() { invalidateRect(boundsRect()); }
     virtual void invalidateRect(const IntRect&) = 0;
 
     virtual void setFocus(bool, WebFocusType) { }
 
     virtual void show() { }
     virtual void hide() { }
     bool isSelfVisible() const { return m_selfVisible; } // Whether or not we have been explicitly marked as visible or not.
@@ skipping 47 matching lines @@
 private:
     Member<Widget> m_parent;
     IntRect m_frame;
     bool m_selfVisible;
     bool m_parentVisible;
 };
 
 } // namespace blink
 
 #endif // Widget_h