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

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

Index: third_party/WebKit/Source/core/layout/LayoutFlowThread.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutFlowThread.cpp b/third_party/WebKit/Source/core/layout/LayoutFlowThread.cpp
index b42ccdb4801d97f37fb210900c2c1eb03573aea4..a10a4d94f78499cdc3d18ce281e7cfab53457b91 100644
--- a/third_party/WebKit/Source/core/layout/LayoutFlowThread.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutFlowThread.cpp
@@ -118,7 +118,8 @@ void LayoutFlowThread::computeLogicalHeight(
 }
 
 void LayoutFlowThread::absoluteQuadsForDescendant(const LayoutBox& descendant,
-                                                  Vector<FloatQuad>& quads) {
+                                                  Vector<FloatQuad>& quads,
+                                                  MapCoordinatesFlags mode) {
   LayoutPoint offsetFromFlowThread;
   for (const LayoutObject* object = &descendant; object != this;) {
     const LayoutObject* container = object->container();
@@ -137,7 +138,7 @@ void LayoutFlowThread::absoluteQuadsForDescendant(const LayoutBox& descendant,
     // coordinates for zero-height objects.
     fragment.inclusiveIntersect(iterator.fragmentainerInFlowThread());
     fragment.moveBy(-offsetFromFlowThread);
-    quads.append(descendant.localToAbsoluteQuad(FloatRect(fragment)));
+    quads.append(descendant.localToAbsoluteQuad(FloatRect(fragment), mode));
   }
 }