Enable basic drawing with SkRecord-based pictures.

src/gpu/GrPictureUtils.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrPictureUtils.h"
 #include "SkDevice.h"
 #include "SkDraw.h"
@@ skipping 232 matching lines @@
         this->updateClipConservativelyUsingBounds(path.getBounds(), op,
                                                   path.isInverseFillType());
     }
     virtual void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle) SK_OVERRIDE {
         this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false);
     }
 
     virtual void onDrawPicture(const SkPicture* picture) SK_OVERRIDE {
         // BBH-based rendering doesn't re-issue many of the operations the gather
         // process cares about (e.g., saves and restores) so it must be disabled.
-        if (NULL != picture->fPlayback) {
+        if (NULL != picture->fPlayback.get()) {
             picture->fPlayback->setUseBBH(false);
         }
         picture->draw(this);
-        if (NULL != picture->fPlayback) {
+        if (NULL != picture->fPlayback.get()) {
             picture->fPlayback->setUseBBH(true);
         }
     }
 
 private:
     const SkPicture* fPicture;
 
     typedef SkCanvas INHERITED;
 };
 
 // GatherGPUInfo is only intended to be called within the context of SkGpuDevice's
 // EXPERIMENTAL_optimize method.
 void GatherGPUInfo(const SkPicture* pict, GPUAccelData* accelData) {
     if (0 == pict->width() || 0 == pict->height()) {
         return ;
     }
 
     GrGatherDevice device(pict->width(), pict->height(), pict, accelData, 0);
     GrGatherCanvas canvas(&device, pict);
 
     canvas.gather();
 }