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

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

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1705 matching lines @@
       DCHECK_EQ(m_layoutObject.document().lifecycle().state(),
                 DocumentLifecycle::InPrePaint);
       m_layoutObject.clearPaintInvalidationFlags();
       m_layoutObject.m_bitfields.setNeedsPaintPropertyUpdate(false);
       m_layoutObject.m_bitfields.setSubtreeNeedsPaintPropertyUpdate(false);
       m_layoutObject.m_bitfields.setDescendantNeedsPaintPropertyUpdate(false);
     }
     void setShouldDoFullPaintInvalidation(PaintInvalidationReason reason) {
       m_layoutObject.setShouldDoFullPaintInvalidation(reason);
     }
+    void setShouldDoFullPaintInvalidationWithoutGeometryChange(
+        PaintInvalidationReason reason) {
+      m_layoutObject.setShouldDoFullPaintInvalidationWithoutGeometryChange(
+          reason);
+    }
     void setBackgroundChangedSinceLastPaintInvalidation() {
       m_layoutObject.setBackgroundChangedSinceLastPaintInvalidation();
     }
     void ensureIsReadyForPaintInvalidation() {
       m_layoutObject.ensureIsReadyForPaintInvalidation();
     }
 
     // The following setters store the current values as calculated during the
     // pre-paint tree walk. TODO(wangxianzhu): Add check of lifecycle states.
     void setVisualRect(const LayoutRect& r) { m_layoutObject.setVisualRect(r); }
@@ skipping 1045 matching lines @@
 CORE_EXPORT void showLineTree(const blink::LayoutObject*);
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1,
                                 const blink::LayoutObject* object2);
 
 #endif
 
 #endif  // LayoutObject_h