Bypass cached element rects in AXLayoutObject.

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp

 /*
 * Copyright (C) 2008 Apple 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.
 * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 183 matching lines @@
 
 AXLayoutObject::~AXLayoutObject()
 {
     ASSERT(isDetached());
 }
 
 LayoutRect AXLayoutObject::elementRect() const
 {
     if (!m_explicitElementRect.isEmpty())
         return m_explicitElementRect;
-    if (!m_layoutObject)
-        return LayoutRect();
-    if (!m_layoutObject->isBox())
-        return computeElementRect();
 
-    for (const AXObject* obj = this; obj; obj = obj->parentObject()) {
-        if (obj->isAXLayoutObject())
-            toAXLayoutObject(obj)->checkCachedElementRect();
-    }
-    for (const AXObject* obj = this; obj; obj = obj->parentObject()) {
-        if (obj->isAXLayoutObject())
-            toAXLayoutObject(obj)->updateCachedElementRect();
-    }
-
-    return m_cachedElementRect;
+    // FIXME(dmazzoni): use relative bounds instead since this is a bottleneck.
+    // http://crbug.com/618120
+    return computeElementRect();
 }
 
 SkMatrix44 AXLayoutObject::transformFromLocalParentFrame() const
 {
     if (!m_layoutObject)
         return SkMatrix44();
     LayoutView* layoutView = toLayoutView(LayoutAPIShim::layoutObjectFrom(documentFrameView()->layoutViewItem()));
 
     FrameView* parentFrameView = documentFrameView()->parentFrameView();
     if (!parentFrameView)
@@ skipping 2350 matching lines @@
                     result.unite(labelRect);
                 }
             }
         }
     }
 
     return result;
 }
 
 } // namespace blink