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

third_party/WebKit/Source/core/layout/PaintInvalidationState.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintInvalidationState_h
 #define PaintInvalidationState_h
 
 #include "core/CoreExport.h"
 #include "core/paint/PaintInvalidator.h"
 #include "platform/geometry/LayoutRect.h"
@@ skipping 58 matching lines @@
         PaintInvalidatorContext::ForcedSubtreeInvalidationChecking;
   }
 
   bool forcedSubtreeFullInvalidationWithinContainer() const {
     return m_forcedSubtreeInvalidationFlags &
            PaintInvalidatorContext::ForcedSubtreeFullInvalidation;
   }
 
   bool forcedSubtreeInvalidationRectUpdateWithinContainerOnly() const {
     return m_forcedSubtreeInvalidationFlags ==
-           PaintInvalidatorContext::ForcedSubtreeInvalidationRectUpdate;
+           PaintInvalidatorContext::ForcedSubtreeVisualRectUpdate;
   }
   void setForceSubtreeInvalidationRectUpdateWithinContainer() {
     m_forcedSubtreeInvalidationFlags |=
-        PaintInvalidatorContext::ForcedSubtreeInvalidationRectUpdate;
+        PaintInvalidatorContext::ForcedSubtreeVisualRectUpdate;
   }
 
   const LayoutBoxModelObject& paintInvalidationContainer() const {
     return *m_paintInvalidationContainer;
   }
 
   // Computes the location of the current object ((0,0) in the space of the
   // object) in the space of paint invalidation backing.
   LayoutPoint computeLocationInBacking(
       const LayoutPoint& visualRectLocation) const;
@@ skipping 98 matching lines @@
   void mapLocalRectToVisualRectInBacking(const LayoutObject&,
                                          LayoutRect&) const override;
 
  private:
   const PaintInvalidationState& m_paintInvalidationState;
 };
 
 }  // namespace blink
 
 #endif  // PaintInvalidationState_h