Remove uses of GrAutoScratchTexture.

tests/WritePixelsTest.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 "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
@@ skipping 301 matching lines @@
 #if SK_SUPPORT_GPU
         case kGpu_BottomLeft_DevType:
         case kGpu_TopLeft_DevType:
             GrTextureDesc desc;
             desc.fFlags = kRenderTarget_GrTextureFlagBit;
             desc.fWidth = DEV_W;
             desc.fHeight = DEV_H;
             desc.fConfig = kSkia8888_GrPixelConfig;
             desc.fOrigin = kGpu_TopLeft_DevType == c.fDevType ?
                 kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
-            GrAutoScratchTexture ast(grCtx, desc, GrContext::kExact_ScratchTexMatch);
-            SkAutoTUnref<GrTexture> tex(ast.detach());
-            return SkSurface::NewRenderTargetDirect(tex->asRenderTarget());
+            SkAutoTUnref<GrTexture> texture(
+                grCtx->refScratchTexture(desc, GrContext::kExact_ScratchTexMatch));
+            return SkSurface::NewRenderTargetDirect(texture->asRenderTarget());
 #endif
     }
     return NULL;
 }
 
 static bool setup_bitmap(SkBitmap* bm, SkColorType ct, SkAlphaType at, int w, int h, int tightRB) {
     size_t rowBytes = tightRB ? 0 : 4 * w + 60;
     SkImageInfo info = SkImageInfo::Make(w, h, ct, at);
     if (!allocRowBytes(bm, info, rowBytes)) {
         return false;
@@ skipping 136 matching lines @@
                         SkIRect writeRect = SkIRect::MakeXYWH(rect.fLeft, rect.fTop,
                                                               bmp.width(), bmp.height());
                         bool intersects = SkIRect::Intersects(canvasRect, writeRect) ;
                         REPORTER_ASSERT(reporter, intersects == (idBefore != idAfter));
                     }
                 }
             }
         }
     }
 }