Remove picture pre-allocation from SkPictureRecorder

include/core/SkPictureRecorder.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPictureRecorder_DEFINED
 #define SkPictureRecorder_DEFINED
 
@@ skipping 43 matching lines @@
     void internalOnly_EnableOpts(bool enableOpts);
 
 private:
     /** Replay the current (partially recorded) operation stream into
         canvas. This call doesn't close the current recording.
     */
     friend class AndroidPicture;
     friend class SkPictureRecorderReplayTester; // for unit testing
     void partialReplay(SkCanvas* canvas) const;
 
-    SkAutoTUnref<SkPicture> fPicture;
+    int                     fWidth;
+    int                     fHeight;
     SkPictureRecord*        fCanvas;   // ref counted
 
     typedef SkNoncopyable INHERITED;
 };
 
 #endif