split SkPictureRecorder out of SkPicture

gm/pathopsskpclip.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 14 matching lines @@
 protected:
     virtual SkString onShortName() SK_OVERRIDE {
         return SkString("pathopsskpclip");
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
         return make_isize(1200, 900);
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
-        SkPicture* pict = SkNEW(SkPicture);
-        SkCanvas* rec = pict->beginRecording(1200, 900);
+        SkPictureRecorder recorder;
+        SkCanvas* rec = recorder.beginRecording(1200, 900);
         SkPath p;
         SkRect r = {
             SkIntToScalar(100),
             SkIntToScalar(200),
             SkIntToScalar(400),
             SkIntToScalar(700)
         };
         p.addRoundRect(r, SkIntToScalar(50), SkIntToScalar(50));
         rec->clipPath(p, SkRegion::kIntersect_Op, true);
         rec->translate(SkIntToScalar(250), SkIntToScalar(250));
         rec->clipPath(p, SkRegion::kIntersect_Op, true);
         rec->drawColor(0xffff0000);
-        pict->endRecording();
+        SkAutoTUnref<SkPicture> pict(recorder.endRecording());
 
         canvas->setAllowSimplifyClip(true);
         canvas->save();
         canvas->drawPicture(*pict);
         canvas->restore();
 
         canvas->setAllowSimplifyClip(false);
         canvas->save();
         canvas->translate(SkIntToScalar(1200 / 2), 0);
         canvas->drawPicture(*pict);
         canvas->restore();
-        SkSafeUnref(pict);
     }
 
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new PathOpsSkpClipGM; }
 static GMRegistry reg(MyFactory);
 
 }