Refactor HitTestResult to store the HitTestRequest

Source/core/layout/LayoutTextControlSingleLine.cpp

 /**
  * Copyright (C) 2006, 2007, 2010 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 186 matching lines @@
             textOffset += toLayoutSize(containerRenderer->location());
         placeholderBox->setLocation(textOffset);
 
         // The placeholder gets layout last, after the parent text control and its other children,
         // so in order to get the correct overflow from the placeholder we need to recompute it now.
         if (neededLayout)
             computeOverflow(clientLogicalBottom());
     }
 }
 
-bool LayoutTextControlSingleLine::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
+bool LayoutTextControlSingleLine::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
 {
-    if (!LayoutTextControl::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction))
+    if (!LayoutTextControl::nodeAtPoint(result, locationInContainer, accumulatedOffset, hitTestAction))
         return false;
 
     // Say that we hit the inner text element if
     //  - we hit a node inside the inner text element,
     //  - we hit the <input> element (e.g. we're over the border or padding), or
     //  - we hit regions not in any decoration buttons.
     Element* container = containerElement();
     if (result.innerNode()->isDescendantOf(innerEditorElement()) || result.innerNode() == node() || (container && container == result.innerNode())) {
         LayoutPoint pointInParent = locationInContainer.point();
         if (container && editingViewPortElement()) {
@@ skipping 211 matching lines @@
     if (innerEditorElement())
         innerEditorElement()->setScrollTop(newTop);
 }
 
 HTMLInputElement* LayoutTextControlSingleLine::inputElement() const
 {
     return toHTMLInputElement(node());
 }
 
 }