don't use accessBitmap

src/image/SkSurface_Gpu.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkSurface_Gpu.h"
 
 #include "SkCanvas.h"
@@ skipping 42 matching lines @@
         image = SkNEW_ARGS(SkImage_Gpu,
                            (info.width(), info.height(), info.alphaType(),
                             tex, sampleCount, budgeted));
     }
     if (image) {
         as_IB(image)->initWithProps(this->props());
     }
     return image;
 }
 
-void SkSurface_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
-                              const SkPaint* paint) {
-    canvas->drawBitmap(fDevice->accessBitmap(false), x, y, paint);
-}
-
 // Create a new render target and, if necessary, copy the contents of the old
 // render target into it. Note that this flushes the SkGpuDevice but
 // doesn't force an OpenGL flush.
 void SkSurface_Gpu::onCopyOnWrite(ContentChangeMode mode) {
     GrRenderTarget* rt = fDevice->accessRenderTarget();
     // are we sharing our render target with the image? Note this call should never create a new
     // image because onCopyOnWrite is only called when there is a cached image.
     SkImage* image = this->getCachedImage(kNo_Budgeted);
     SkASSERT(image);
     if (rt->asTexture() == image->getTexture()) {
@@ skipping 42 matching lines @@
     }
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(surface->asRenderTarget(), props,
                                                          SkGpuDevice::kNeedClear_Flag));
     if (!device) {
         return NULL;
     }
     return SkNEW_ARGS(SkSurface_Gpu, (device));
 }
 
 #endif