Avoid calling updateAllLifecyclePhasesExceptPaint in SVGImage if not needed.

third_party/WebKit/Source/platform/Widget.h

Index: third_party/WebKit/Source/platform/Widget.h
diff --git a/third_party/WebKit/Source/platform/Widget.h b/third_party/WebKit/Source/platform/Widget.h
index 06e035f025d7f2823f426449f200bab0dd8b543c..cf5d879a50f558f8ff536ec262774809fbf4578c 100644
--- a/third_party/WebKit/Source/platform/Widget.h
+++ b/third_party/WebKit/Source/platform/Widget.h
@@ -63,8 +63,9 @@ public:
     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()); }