split SkPictureRecorder out of SkPicture

gm/gmmain.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /*
  * Code for the "gm" (Golden Master) rendering comparison tool.
  *
@@ skipping 990 matching lines @@
         errors.add(compare_to_expectations(expectations, actualBitmapAndDigest, shortName,
                                            configName, renderModeDescriptor, false));
         SkString shortNamePlusConfig = make_shortname_plus_config(shortName, configName);
         RecordTestResults(errors, shortNamePlusConfig, renderModeDescriptor);
 
         return errors;
     }
 
     static SkPicture* generate_new_picture(GM* gm, BbhType bbhType, uint32_t recordFlags,
                                            SkScalar scale = SK_Scalar1) {
-        // Pictures are refcounted so must be on heap
-        SkPicture* pict;
         int width = SkScalarCeilToInt(SkScalarMul(SkIntToScalar(gm->getISize().width()), scale));
         int height = SkScalarCeilToInt(SkScalarMul(SkIntToScalar(gm->getISize().height()), scale));
 
+        SkAutoTUnref<SkPictureFactory> factory;
         if (kTileGrid_BbhType == bbhType) {
             SkTileGridPicture::TileGridInfo info;
             info.fMargin.setEmpty();
             info.fOffset.setZero();
             info.fTileInterval.set(16, 16);
-            pict = new SkTileGridPicture(width, height, info);
-        } else {
-            pict = new SkPicture;
+            factory.reset(SkNEW_ARGS(SkTileGridPictureFactory, (info)));
         }
         if (kNone_BbhType != bbhType) {
             recordFlags |= SkPicture::kOptimizeForClippedPlayback_RecordingFlag;
         }
-        SkCanvas* cv = pict->beginRecording(width, height, recordFlags);
+        SkPictureRecorder recorder(factory);
+        SkCanvas* cv = recorder.beginRecording(width, height, recordFlags);
         cv->scale(scale, scale);
         invokeGM(gm, cv, false, false);
-        pict->endRecording();
-
-        return pict;
+        return recorder.endRecording();
     }
 
     static SkPicture* stream_to_new_picture(const SkPicture& src) {
         SkDynamicMemoryWStream storage;
         src.serialize(&storage, NULL);
         SkAutoTUnref<SkStreamAsset> pictReadback(storage.detachAsStream());
         SkPicture* retval = SkPicture::CreateFromStream(pictReadback,
                                                         &SkImageDecoder::DecodeMemory);
         return retval;
     }
@@ skipping 1397 matching lines @@
     if (FLAGS_forceBWtext) {
         canvas->setDrawFilter(SkNEW(BWTextDrawFilter))->unref();
     }
 }
 
 #if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif