Revert of Moving HitTest function to DeprecatedPaintLayerStackingNode.

Source/core/paint/DeprecatedPaintLayerStackingNode.cpp

Index: Source/core/paint/DeprecatedPaintLayerStackingNode.cpp
diff --git a/Source/core/paint/DeprecatedPaintLayerStackingNode.cpp b/Source/core/paint/DeprecatedPaintLayerStackingNode.cpp
index 25b2fbac73fb1aaaeabe3d35e7233def7d6abb35..9218010e417aa82226b712d114f121c85a700217 100644
--- a/Source/core/paint/DeprecatedPaintLayerStackingNode.cpp
+++ b/Source/core/paint/DeprecatedPaintLayerStackingNode.cpp
@@ -44,9 +44,6 @@
 #include "config.h"
 #include "core/paint/DeprecatedPaintLayerStackingNode.h"
 
-#include "core/layout/HitTestLocation.h"
-#include "core/layout/HitTestRequest.h"
-#include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/compositing/DeprecatedPaintLayerCompositor.h"
 #include "core/paint/DeprecatedPaintLayer.h"
@@ -324,60 +321,9 @@
     return 0;
 }
 
-static inline LayoutRect frameVisibleRect(LayoutObject* layoutObject)
-{
-    FrameView* frameView = layoutObject->document().view();
-    if (!frameView)
-        return LayoutRect();
-
-    return LayoutRect(frameView->visibleContentRect());
-}
-
 LayoutBoxModelObject* DeprecatedPaintLayerStackingNode::layoutObject() const
 {
     return m_layer->layoutObject();
 }
 
-bool DeprecatedPaintLayerStackingNode::hitTest(HitTestResult& result)
-{
-    return hitTest(result.hitTestRequest(), result.hitTestLocation(), result);
-}
-
-bool DeprecatedPaintLayerStackingNode::hitTest(const HitTestRequest& request, const HitTestLocation& hitTestLocation, HitTestResult& result)
-{
-    ASSERT(layer()->isSelfPaintingLayer() || layer()->hasSelfPaintingLayerDescendant());
-
-    // LayoutView should make sure to update layout before entering hit testing
-    ASSERT(!layoutObject()->frame()->view()->layoutPending());
-    ASSERT(!layoutObject()->document().layoutView()->needsLayout());
-
-    // Start with frameVisibleRect to ensure we include the scrollbars.
-    LayoutRect hitTestArea = frameVisibleRect(layoutObject());
-    if (request.ignoreClipping())
-        hitTestArea.unite(LayoutRect(layoutObject()->view()->documentRect()));
-
-    DeprecatedPaintLayer* insideLayer = layer()->hitTestLayer(layer(), 0, result, hitTestArea, hitTestLocation, false);
-    if (!insideLayer) {
-        // We didn't hit any layer. If we are the root layer and the mouse is -- or just was -- down,
-        // return ourselves. We do this so mouse events continue getting delivered after a drag has
-        // exited the WebView, and so hit testing over a scrollbar hits the content document.
-        // In addtion, it is possible for the mouse to stay in the document but there is no element.
-        // At that time, the events of the mouse should be fired.
-        LayoutPoint hitPoint = hitTestLocation.point();
-        if (!request.isChildFrameHitTest() && ((request.active() || request.release()) || (request.move() && hitTestArea.contains(hitPoint.x(), hitPoint.y()))) && layer()->isRootLayer()) {
-            layoutObject()->updateHitTestResult(result, toLayoutView(layoutObject())->flipForWritingMode(hitTestLocation.point()));
-            insideLayer = layer();
-        }
-    }
-
-    // Now determine if the result is inside an anchor - if the urlElement isn't already set.
-    Node* node = result.innerNode();
-    if (node && !result.URLElement())
-        result.setURLElement(node->enclosingLinkEventParentOrSelf());
-
-    // Now return whether we were inside this layer (this will always be true for the root
-    // layer).
-    return insideLayer;
-}
-
 } // namespace blink