Rework compositor touch hit testing

Source/core/rendering/RenderBox.cpp

Index: Source/core/rendering/RenderBox.cpp
diff --git a/Source/core/rendering/RenderBox.cpp b/Source/core/rendering/RenderBox.cpp
index 30e8eb901e26a172d38dff8df9eab70e52d0d328..c3089689fb048d9550cf10a868e2ccb91f156a79 100644
--- a/Source/core/rendering/RenderBox.cpp
+++ b/Source/core/rendering/RenderBox.cpp
@@ -580,6 +580,18 @@ void RenderBox::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint& add
         rects.append(pixelSnappedIntRect(additionalOffset, size()));
 }
 
+void RenderBox::addLayerHitTestRects(LayerHitTestRects& layerRects, const RenderLayer* currentLayer, const LayoutPoint& layerOffset) const
+{
+    LayoutPoint adjustedLayerOffset = layerOffset + locationOffset();
+    RenderBoxModelObject::addLayerHitTestRects(layerRects, currentLayer, adjustedLayerOffset);
+}
+
+void RenderBox::computeOwnHitTestRects(Vector<IntRect>& rects, const LayoutPoint& layerOffset) const
+{
+    if (!size().isEmpty())
+        rects.append(enclosingIntRect(LayoutRect(layerOffset, size())));
+}
+
 LayoutRect RenderBox::reflectionBox() const
 {
     LayoutRect result;