Change the return value of RenderLayer::hitTestLayer.

sky/engine/core/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 221 matching lines @@
         RenderLayerModelObject* layerRenderer = renderer();
         return isRootLayer() || layerRenderer->isPositioned() || hasTransform();
     }
 
     void updateOrRemoveFilterEffectRenderer();
     void updateSelfPaintingLayer();
 
     void clipToRect(const LayerPaintingInfo&, GraphicsContext*, const ClipRect&, BorderRadiusClippingRule = IncludeSelfForBorderRadius);
     void restoreClip(GraphicsContext*, const LayoutRect& paintDirtyRect, const ClipRect&);
 
-    RenderLayer* hitTestLayer(RenderLayer* rootLayer, RenderLayer* containerLayer, const HitTestRequest& request, HitTestResult& result,
-                              const LayoutRect& hitTestRect, const HitTestLocation&,
-                              const HitTestingTransformState* transformState = 0, double* zOffset = 0);
+    bool hitTestLayer(RenderLayer* rootLayer, RenderLayer* containerLayer, const HitTestRequest& request, HitTestResult& result,
+                      const LayoutRect& hitTestRect, const HitTestLocation&,
+                      const HitTestingTransformState* transformState = 0, double* zOffset = 0);
 
 private:
     // TODO(ojan): Get rid of this. These are basically layer-tree-only paint phases.
     enum PaintLayerFlags {
         PaintContent,
     };
 
     // Bounding box in the coordinates of this layer.
     LayoutRect logicalBoundingBox() const;
 
@@ skipping 10 matching lines @@
     bool hasSelfPaintingLayerDescendant() const
     {
         if (m_hasSelfPaintingLayerDescendantDirty)
             updateHasSelfPaintingLayerDescendant();
         ASSERT(!m_hasSelfPaintingLayerDescendantDirty);
         return m_hasSelfPaintingLayerDescendant;
     }
 
     LayoutPoint renderBoxLocation() const { return renderer()->isBox() ? toRenderBox(renderer())->location() : LayoutPoint(); }
 
-    RenderLayer* hitTestChildren(ChildrenIteration, RenderLayer* rootLayer, const HitTestRequest&, HitTestResult&,
-                             const LayoutRect& hitTestRect, const HitTestLocation&,
-                             const HitTestingTransformState* transformState, double* zOffsetForDescendants, double* zOffset,
-                             const HitTestingTransformState* unflattenedTransformState, bool depthSortDescendants);
+    bool hitTestChildren(ChildrenIteration, RenderLayer* rootLayer, const HitTestRequest&, HitTestResult&,
+                         const LayoutRect& hitTestRect, const HitTestLocation&,
+                         const HitTestingTransformState* transformState, double* zOffsetForDescendants, double* zOffset,
+                         const HitTestingTransformState* unflattenedTransformState, bool depthSortDescendants);
 
     PassRefPtr<HitTestingTransformState> createLocalTransformState(RenderLayer* rootLayer, RenderLayer* containerLayer,
                             const LayoutRect& hitTestRect, const HitTestLocation&,
                             const HitTestingTransformState* containerTransformState,
                             const LayoutPoint& translationOffset = LayoutPoint()) const;
 
     bool hitTestContents(const HitTestRequest&, HitTestResult&, const LayoutRect& layerBounds, const HitTestLocation&) const;
 
     bool shouldBeSelfPaintingLayer() const;
 
@@ skipping 58 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const blink::RenderLayer*);
 void showLayerTree(const blink::RenderObject*);
 #endif
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDERLAYER_H_