cc: Add support for debugging layer borders directly in the compositor

cc/layer.h

Index: cc/layer.h
diff --git a/cc/layer.h b/cc/layer.h
index caafa9d474d0c243d36223a608da9c0788754804..caa46c1f8c8b0a07c6a0f5891028954bf29b72b7 100644
--- a/cc/layer.h
+++ b/cc/layer.h
@@ -196,8 +196,6 @@ public:
     virtual void setIsMask(bool) { }
     virtual void bindContentsTexture() { }
 
-    void setDebugBorderColor(SkColor);
-    void setDebugBorderWidth(float);
     void setDebugName(const std::string&);
 
     virtual void pushPropertiesTo(LayerImpl*);
@@ -359,8 +357,6 @@ private:
     gfx::PointF m_position;
     gfx::PointF m_anchorPoint;
     SkColor m_backgroundColor;
-    SkColor m_debugBorderColor;
-    float m_debugBorderWidth;
     std::string m_debugName;
     float m_opacity;
     SkImageFilter* m_filter;