move to modify onCreateDevice virtual

src/utils/SkPictureUtils.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 "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkData.h"
@@ skipping 139 matching lines @@
     }
     virtual void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
                             const SkPaint&) SK_OVERRIDE {
         nothing_to_do();
     }
 
 protected:
     virtual void replaceBitmapBackendForRasterSurface(const SkBitmap&) SK_OVERRIDE {
         not_supported();
     }
-    virtual SkBaseDevice* onCreateDevice(const SkImageInfo& info, Usage usage) SK_OVERRIDE {
+    virtual SkBaseDevice* onCreateCompatibleDevice(const CreateInfo& cinfo) SK_OVERRIDE {
         // we expect to only get called via savelayer, in which case it is fine.
-        SkASSERT(kSaveLayer_Usage == usage);
-        return SkNEW_ARGS(GatherPixelRefDevice, (info.width(), info.height(), fPRSet));
+        SkASSERT(kSaveLayer_Usage == cinfo.fUsage);
+        return SkNEW_ARGS(GatherPixelRefDevice, (cinfo.fInfo.width(), cinfo.fInfo.height(), fPRSet));
     }
     virtual void flush() SK_OVERRIDE {}
 
 private:
     PixelRefSet*  fPRSet;
     SkBitmap fEmptyBitmap;  // legacy -- need to remove the need for this guy
     SkISize fSize;
 
     void addBitmap(const SkBitmap& bm) {
       fPRSet->add(bm.pixelRef());
@@ skipping 37 matching lines @@
     canvas.clipRect(area, SkRegion::kIntersect_Op, false);
     canvas.drawPicture(pict);
 
     SkData* data = NULL;
     int count = array.count();
     if (count > 0) {
         data = SkData::NewFromMalloc(array.detach(), count * sizeof(SkPixelRef*));
     }
     return data;
 }