Rework compositor touch hit testing

Source/core/rendering/RenderBox.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, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. 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 567 matching lines @@
 
     return box;
 }
 
 void RenderBox::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint& additionalOffset, const RenderLayerModelObject*)
 {
     if (!size().isEmpty())
         rects.append(pixelSnappedIntRect(additionalOffset, size()));
 }
 
+void RenderBox::addLayerHitTestRects(LayerHitTestRects& layerRects, const RenderLayer* currentCompositedLayer, const LayoutPoint& layerOffset) const
+{
+    LayoutPoint adjustedLayerOffset = layerOffset + locationOffset();
+    RenderBoxModelObject::addLayerHitTestRects(layerRects, currentCompositedLayer, adjustedLayerOffset);
+}
+
+void RenderBox::computeOwnHitTestRects(Vector<IntRect>& rects, const LayoutPoint& layerOffset) const
+{
+    if (!size().isEmpty())
+        rects.append(pixelSnappedIntRect(layerOffset, size()));
+}
+
 LayoutRect RenderBox::reflectionBox() const
 {
     LayoutRect result;
     if (!style()->boxReflect())
         return result;
     LayoutRect box = borderBoxRect();
     result = box;
     switch (style()->boxReflect()->direction()) {
         case ReflectionBelow:
             result.move(0, box.height() + reflectionOffset());
@@ skipping 3998 matching lines @@
 
 void RenderBox::reportStaticMembersMemoryUsage(MemoryInstrumentation* memoryInstrumentation)
 {
     memoryInstrumentation->addRootObject(gOverrideHeightMap, WebCoreMemoryTypes::RenderingStructures);
     memoryInstrumentation->addRootObject(gOverrideWidthMap, WebCoreMemoryTypes::RenderingStructures);
     memoryInstrumentation->addRootObject(gOverrideContainingBlockLogicalHeightMap, WebCoreMemoryTypes::RenderingStructures);
     memoryInstrumentation->addRootObject(gOverrideContainingBlockLogicalWidthMap, WebCoreMemoryTypes::RenderingStructures);
 }
 
 } // namespace WebCore