call drawRect to try GrAARectRenderer if the path is a rect

include/core/SkCanvas.h

Index: include/core/SkCanvas.h
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index dc3953ed4b1df71634992a1bec5bd1d7a85450e3..68695854198b7bfbe6125a3289814a3b230d7f4b 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -575,16 +575,20 @@ public:
         will be filled or stroked based on the Style in the paint.
         @param rect     The rect to be drawn
         @param paint    The paint used to draw the rect
+
+        Overriding this function is deprecated. It will be made non-virtual
+        soon. Instead override onDrawRect.
     */
-    virtual void drawRect(const SkRect& rect, const SkPaint& paint);
+    virtual void drawRect(const SkRect& rect, const SkPaint& paint) {
+        this->onDrawRect(rect, paint);
+    }
 
     /** Draw the specified rectangle using the specified paint. The rectangle
         will be filled or framed based on the Style in the paint.
         @param rect     The rect to be drawn
         @param paint    The paint used to draw the rect
     */
-    void drawIRect(const SkIRect& rect, const SkPaint& paint)
-    {
+    void drawIRect(const SkIRect& rect, const SkPaint& paint) {
         SkRect r;
         r.set(rect);    // promotes the ints to scalars
         this->drawRect(r, paint);
@@ -656,8 +660,18 @@ public:
         filled or framed based on the Style in the paint.
         @param path     The path to be drawn
         @param paint    The paint used to draw the path
+
+        Overriding this function is deprecated. It will be made non-virtual
+        soon. Instead override onDrawRect.
     */
-    virtual void drawPath(const SkPath& path, const SkPaint& paint);
+    virtual void drawPath(const SkPath& path, const SkPaint& paint) {
+        SkRect rect;
+        if (path.isRect(&rect) && !path.isInverseFillType()) {
+            this->onDrawRect(rect, paint);
+        } else {
+            this->onDrawPath(path, paint);
+        }
+    }
 
     /** Draw the specified bitmap, with its top/left corner at (x,y), using the
         specified paint, transformed by the current matrix. Note: if the paint
@@ -1034,6 +1048,10 @@ protected:
     // can perform copy-on-write or invalidate any cached images
     void predrawNotify();
 
+    virtual void onDrawRect(const SkRect& rect, const SkPaint& paint);
+
+    virtual void onDrawPath(const SkPath& path, const SkPaint& paint);
+
     /** DEPRECATED -- use constructor(device)
 
      Marked as 'protected' to avoid new clients using this before we can