Apply offset from the correct graphics layer; simplify code for link highlights.

third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 593 matching lines @@
           return true;
       } else {
         ASSERT(object->isText());
       }
     }
   }
   return false;
 }
 
 void LayoutBoxModelObject::absoluteQuadsForSelf(
-    Vector<FloatQuad>& quads) const {
+    Vector<FloatQuad>& quads,
+    MapCoordinatesFlags mode) const {
   NOTREACHED();
 }
 
-void LayoutBoxModelObject::absoluteQuads(Vector<FloatQuad>& quads) const {
-  absoluteQuadsForSelf(quads);
+void LayoutBoxModelObject::absoluteQuads(Vector<FloatQuad>& quads,
+                                         MapCoordinatesFlags mode) const {
+  absoluteQuadsForSelf(quads, mode);
 
   // Iterate over continuations, avoiding recursion in case there are
   // many of them. See crbug.com/653767.
   for (const LayoutBoxModelObject* continuationObject = this->continuation();
        continuationObject;
        continuationObject = continuationObject->continuation()) {
     DCHECK(continuationObject->isLayoutInline() ||
            (continuationObject->isLayoutBlockFlow() &&
             toLayoutBlockFlow(continuationObject)
                 ->isAnonymousBlockContinuation()));
-    continuationObject->absoluteQuadsForSelf(quads);
+    continuationObject->absoluteQuadsForSelf(quads, mode);
   }
 }
 
 void LayoutBoxModelObject::updateFromStyle() {
   const ComputedStyle& styleToUse = styleRef();
   setHasBoxDecorationBackground(styleToUse.hasBoxDecorationBackground());
   setInline(styleToUse.isDisplayInlineType());
   setPositionState(styleToUse.position());
   setHorizontalWritingMode(styleToUse.isHorizontalWritingMode());
 }
@@ skipping 695 matching lines @@
   if (rootElementStyle->hasBackground())
     return false;
 
   if (node() != document().firstBodyElement())
     return false;
 
   return true;
 }
 
 }  // namespace blink