Add bevel-stroke support in GrAARectRenderer

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index 973185c320ea15d72f0abeb13591d74c86108446..7395288e87cc3278d4b508848fcd44571f96b1f3 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -390,17 +390,18 @@ public:
     /**
      *  Draw the rect using a paint.
      *  @param paint        describes how to color pixels.
-     *  @param strokeWidth  If strokeWidth < 0, then the rect is filled, else
-     *                      the rect is mitered stroked based on strokeWidth. If
-     *                      strokeWidth == 0, then the stroke is always a single
-     *                      pixel thick.
+     *  @param stroke       the stroke information (width, join, cap). 
+     *                      If stroke == NULL, then the rect is filled. 
+     *                      Otherwise, if stroke width == 0, then the stroke
+     *                      is always a single pixel thick, else the rect is 
+     *                      mitered/beveled stroked based on stroke width.
      *  @param matrix       Optional matrix applied to the rect. Applied before
      *                      context's matrix or the paint's matrix.
      *  The rects coords are used to access the paint (through texture matrix)
      */
     void drawRect(const GrPaint& paint,
                   const SkRect&,
-                  SkScalar strokeWidth = -1,
+                  const SkStrokeRec* stroke = NULL,
                   const SkMatrix* matrix = NULL);
 
     /**