split SkPictureRecorder out of SkPicture

gm/pictureshader.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 "gm.h"
 
 #include "SkBitmap.h"
@@ skipping 13 matching lines @@
 };
 
 class PictureShaderGM : public GM {
 public:
 
     PictureShaderGM(SkScalar tileSize, SkScalar sceneSize)
         : fTileSize(tileSize)
         , fSceneSize(sceneSize) {
 
         // Build the picture.
-        SkAutoTUnref<SkPicture> p(SkNEW(SkPicture));
-        SkCanvas* pictureCanvas = p->beginRecording(SkScalarRoundToInt(tileSize),
-                                                    SkScalarRoundToInt(tileSize));
+        SkPictureRecorder recorder;
+        SkCanvas* pictureCanvas = recorder.beginRecording(SkScalarRoundToInt(tileSize),
+                                                          SkScalarRoundToInt(tileSize));
         this->drawTile(pictureCanvas);
-        p->endRecording();
+        SkAutoTUnref<SkPicture> p(recorder.endRecording());
 
         // Build a reference bitmap.
         SkBitmap bm;
         bm.allocN32Pixels(SkScalarRoundToInt(tileSize), SkScalarRoundToInt(tileSize));
         bm.eraseColor(SK_ColorTRANSPARENT);
         SkCanvas bitmapCanvas(bm);
         this->drawTile(&bitmapCanvas);
 
         for (unsigned i = 0; i < SK_ARRAY_COUNT(kTileConfigs); ++i) {
             fPictureShaders[i].reset(SkShader::CreatePictureShader(p,
@@ skipping 107 matching lines @@
     SkScalar    fSceneSize;
 
     SkAutoTUnref<SkShader> fPictureShaders[SK_ARRAY_COUNT(kTileConfigs)];
     SkAutoTUnref<SkShader> fBitmapShaders[SK_ARRAY_COUNT(kTileConfigs)];
 
     typedef GM INHERITED;
 };
 
 DEF_GM( return SkNEW_ARGS(PictureShaderGM, (50, 100)); )
 }