Add bevel-stroke support in GrAARectRenderer

src/gpu/GrAARectRenderer.h

Index: src/gpu/GrAARectRenderer.h
===================================================================
--- src/gpu/GrAARectRenderer.h	(revision 11177)
+++ src/gpu/GrAARectRenderer.h	(working copy)
@@ -64,7 +64,8 @@
                       const SkMatrix& combinedMatrix,
                       const SkRect& devRect,
                       SkScalar width,
-                      bool useVertexCoverage);
+                      bool useVertexCoverage,
+                      bool miterStroke);
 
     // First rect is outer; second rect is inner
     void fillAANestedRects(GrGpu* gpu,
@@ -79,8 +80,8 @@
 
     GrIndexBuffer* aaFillRectIndexBuffer(GrGpu* gpu);
 
-    static int aaStrokeRectIndexCount();
-    GrIndexBuffer* aaStrokeRectIndexBuffer(GrGpu* gpu);
+    static int aaStrokeRectIndexCount(bool miterStroke);
+    GrIndexBuffer* aaStrokeRectIndexBuffer(GrGpu* gpu, bool miterStroke);
 
     // TODO: Remove the useVertexCoverage boolean. Just use it all the time
     // since we now have a coverage vertex attribute
@@ -104,8 +105,10 @@
     void geometryStrokeAARect(GrGpu* gpu,
                               GrDrawTarget* target,
                               const SkRect& devOutside,
+                              const SkRect& devOutsideAssist,
                               const SkRect& devInside,
-                              bool useVertexCoverage);
+                              bool useVertexCoverage,
+                              bool miterStroke);
 
     typedef SkRefCnt INHERITED;
 };