Clean up test drawContext usage

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 329 matching lines @@
     SkASSERT(draw.fClipStack && draw.fClipStack == fClipStack);
 
     fClip.setClipStack(fClipStack, &this->getOrigin());
 }
 
 GrRenderTarget* SkGpuDevice::accessRenderTarget() {
     ASSERT_SINGLE_OWNER
     return fRenderTarget;
 }
 
+GrDrawContext* SkGpuDevice::accessDrawContext() {
+    ASSERT_SINGLE_OWNER
+    return fDrawContext.get();
+}
+
 void SkGpuDevice::clearAll() {
     ASSERT_SINGLE_OWNER
     GrColor color = 0;
     GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice", "clearAll", fContext);
     SkIRect rect = SkIRect::MakeWH(this->width(), this->height());
     fDrawContext->clear(&rect, color, true);
 }
 
 void SkGpuDevice::replaceRenderTarget(bool shouldRetainContent) {
     ASSERT_SINGLE_OWNER
@@ skipping 1481 matching lines @@
 }
 
 SkImageFilterCache* SkGpuDevice::getImageFilterCache() {
     ASSERT_SINGLE_OWNER
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilterCache::Create(kDefaultImageFilterCacheSize);
 }
 
 #endif