Clean up test drawContext usage

src/gpu/SkGpuDevice.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkGpuDevice_DEFINED
 #define SkGpuDevice_DEFINED
 
@@ skipping 53 matching lines @@
     }
 
     GrContext* context() const override { return fContext; }
 
     // set all pixels to 0
     void clearAll();
 
     void replaceRenderTarget(bool shouldRetainContent);
 
     GrRenderTarget* accessRenderTarget() override;
+    GrDrawContext* accessDrawContext() override;
 
     SkImageInfo imageInfo() const override {
         return fLegacyBitmap.info();
     }
 
     void drawPaint(const SkDraw&, const SkPaint& paint) override;
     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,
                             const SkPoint[], const SkPaint& paint) override;
     virtual void drawRect(const SkDraw&, const SkRect& r,
                           const SkPaint& paint) override;
@@ skipping 167 matching lines @@
 
     void drawSpriteWithFilter(const SkDraw&, const SkBitmap&, int x, int y,
                               const SkPaint&) override;
 
     friend class GrAtlasTextContext;
     friend class SkSurface_Gpu;      // for access to surfaceProps
     typedef SkBaseDevice INHERITED;
 };
 
 #endif