Refactor HitTestResult to store the HitTestRequest

Source/core/layout/LayoutObject.h

Index: Source/core/layout/LayoutObject.h
diff --git a/Source/core/layout/LayoutObject.h b/Source/core/layout/LayoutObject.h
index e5aadfdb3316d62e2a7cdafe8b6ba694e4bea9df..e4c9fa61ce6739c05a89a3ca3fd4ab460ba7f2e2 100644
--- a/Source/core/layout/LayoutObject.h
+++ b/Source/core/layout/LayoutObject.h
@@ -513,7 +513,7 @@ public:
     // SVG uses FloatPoint precise hit testing, and passes the point in parent
     // coordinates instead of in paint invalidaiton container coordinates. Eventually the
     // rest of the rendering tree will move to a similar model.
-    virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
+    virtual bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
 
     bool isAnonymous() const { return m_bitfields.isAnonymous(); }
     bool isAnonymousBlock() const
@@ -739,9 +739,9 @@ public:
     CompositingState compositingState() const;
     virtual CompositingReasons additionalCompositingReasons() const;
 
-    bool hitTest(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestFilter = HitTestAll);
+    bool hitTest(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestFilter = HitTestAll);
     virtual void updateHitTestResult(HitTestResult&, const LayoutPoint&);
-    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction);
+    virtual bool nodeAtPoint(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction);
 
     virtual PositionWithAffinity positionForPoint(const LayoutPoint&);
     PositionWithAffinity createPositionWithAffinity(int offset, EAffinity);