Cull pushCull and popCull from Skia.

src/utils/debugger/SkDebugCanvas.h

Index: src/utils/debugger/SkDebugCanvas.h
diff --git a/src/utils/debugger/SkDebugCanvas.h b/src/utils/debugger/SkDebugCanvas.h
index 6ec26e258119cbe80c0d6e46ca31c9db05098c6b..18f4c8d71336a4c22f648f13e546fe3bad66d07e 100644
--- a/src/utils/debugger/SkDebugCanvas.h
+++ b/src/utils/debugger/SkDebugCanvas.h
@@ -237,8 +237,6 @@ protected:
                                   const SkMatrix* matrix, const SkPaint&) SK_OVERRIDE;
     virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
                                 const SkPaint& paint) SK_OVERRIDE;
-    virtual void onPushCull(const SkRect& cullRect) SK_OVERRIDE;
-    virtual void onPopCull() SK_OVERRIDE;
 
     virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
     virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
@@ -286,12 +284,6 @@ private:
     SkTDArray<SkDrawCommand*> fActiveLayers;
 
     /**
-        The active cull commands at a given point in the rendering.
-        Only used when "mega" visualization is enabled.
-    */
-    SkTDArray<SkDrawCommand*> fActiveCulls;
-
-    /**
         Adds the command to the classes vector of commands.
         @param command  The draw command for execution
      */