SkRecord: turn on cull annotation pass in public API.

include/record/SkRecording.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 SkRecording_DEFINED
 #define SkRecording_DEFINED
 
@@ skipping 48 matching lines @@
 
     // Draws issued to this canvas will be replayed by SkPlayback::draw().
     // This pointer is owned by the SkRecording; the caller must not take ownership.
     SkCanvas* canvas();
 
 private:
     SkRecording(int width, int height);
     ~SkRecording();
 
     SkRecorder* fRecorder;
-    const SkRecord* fRecord;
+    SkRecord* fRecord;
 };
 
 }  // namespace EXPERIMENTAL
 
 #endif//SkRecording_DEFINED