Skip paint property update and visual rect update if no geometry change

third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h

Index: third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
diff --git a/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h b/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
index c7d2274da3fc556e599b076131c69f717ebfe7c0..81d0f09145ec4c084960c1372167ce124b092579 100644
--- a/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
+++ b/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
@@ -45,8 +45,12 @@ class PrePaintTreeWalk {
       bool& hasClip,
       FloatClipRect&);
 
-  // Returns true if the tree walk should stop before processing this object.
-  bool shouldEndWalkBefore(const LayoutObject&, const PrePaintTreeWalkContext&);
+  bool ALWAYS_INLINE
+  needsTreeBuilderContextUpdate(const FrameView&,
+                                const PrePaintTreeWalkContext&);
+  bool ALWAYS_INLINE
+  needsTreeBuilderContextUpdate(const LayoutObject&,
+                                const PrePaintTreeWalkContext&);
 
   PaintPropertyTreeBuilder m_propertyTreeBuilder;
   PaintInvalidator m_paintInvalidator;