call drawRect to try GrAARectRenderer if the path is a rect

include/utils/SkProxyCanvas.h

Index: include/utils/SkProxyCanvas.h
diff --git a/include/utils/SkProxyCanvas.h b/include/utils/SkProxyCanvas.h
index 383e532fbfca4d849f959dadbadc9cbf961248e5..54cdc3b2b0911207a4b53abfe3ff33042005ac5a 100644
--- a/include/utils/SkProxyCanvas.h
+++ b/include/utils/SkProxyCanvas.h
@@ -48,9 +48,7 @@ public:
     virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
                             const SkPaint& paint) SK_OVERRIDE;
     virtual void drawOval(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
-    virtual void drawRect(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
     virtual void drawRRect(const SkRRect&, const SkPaint& paint) SK_OVERRIDE;
-    virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
     virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
                             const SkPaint* paint = NULL) SK_OVERRIDE;
     virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
@@ -85,6 +83,10 @@ public:
     virtual SkBounder* setBounder(SkBounder* bounder) SK_OVERRIDE;
     virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter) SK_OVERRIDE;
 
+protected:
+    virtual void onDrawRect(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
+    virtual void onDrawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
+
 private:
     SkCanvas*   fProxy;