Actually identify required saveLayers in SkGpuDevice::EXPERIMENTAL_drawPicture

src/gpu/GrClipData.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrClipData.h"
 
 #include "GrSurface.h"
 #include "SkRect.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 
 /**
  * getConservativeBounds returns the conservative bounding box of the clip
  * in device (as opposed to canvas) coordinates. If the bounding box is
  * the result of purely intersections of rects (with an initial replace)
  * isIntersectionOfRects will be set to true.
  */
-void GrClipData::getConservativeBounds(const GrSurface* surface,
+void GrClipData::getConservativeBounds(int width, int height,
                                        SkIRect* devResult,
                                        bool* isIntersectionOfRects) const {
     SkRect devBounds;
 
     fClipStack->getConservativeBounds(-fOrigin.fX,
                                       -fOrigin.fY,
-                                      surface->width(),
-                                      surface->height(),
+                                      width,
+                                      height,
                                       &devBounds,
                                       isIntersectionOfRects);
 
     devBounds.roundOut(devResult);
 }