Mv DRRect drawing code from GrDrawContext into SkGpuDevice

include/gpu/GrDrawContext.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawContext_DEFINED
 #define GrDrawContext_DEFINED
 
@@ skipping 123 matching lines @@
      *  @param strokeInfo   the stroke information (width, join, cap) and
      *                      the dash information (intervals, count, phase).
      */
     void drawRRect(const GrClip&,
                    const GrPaint&,
                    const SkMatrix& viewMatrix,
                    const SkRRect& rrect,
                    const GrStrokeInfo&);
 
     /**
-     *  Shortcut for drawing an SkPath consisting of nested rrects using a paint.
-     *  Does not support stroking. The result is undefined if outer does not contain
-     *  inner.
-     *
-     *  @param paint        describes how to color pixels.
-     *  @param viewMatrix   transformation matrix
-     *  @param outer        the outer roundrect
-     *  @param inner        the inner roundrect
-     */
-    void drawDRRect(const GrClip&,
-                    const GrPaint&,
-                    const SkMatrix& viewMatrix,
-                    const SkRRect& outer,
-                    const SkRRect& inner);
-
-
-    /**
      * Draws a path.
      *
      * @param paint         describes how to color pixels.
      * @param viewMatrix    transformation matrix
      * @param path          the path to draw
      * @param strokeInfo    the stroke information (width, join, cap) and
      *                      the dash information (intervals, count, phase).
      */
     void drawPath(const GrClip&,
                   const GrPaint&,
@@ skipping 149 matching lines @@
     GrContext*                        fContext;
 
     SkSurfaceProps                    fSurfaceProps;
     GrAuditTrail*                     fAuditTrail;
 
     // In debug builds we guard against improper thread handling
     SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)
 };
 
 #endif