Require SK_DECLARE_STATIC_LAZY_PTR is used in global scope.

include/core/SkData.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkData_DEFINED
 #define SkData_DEFINED
 
@@ skipping 153 matching lines @@
     void*       fPtr;
     size_t      fSize;
 
     SkData(const void* ptr, size_t size, ReleaseProc, void* context);
     SkData(size_t size);   // inplace new/delete
     virtual ~SkData();
 
     virtual void internal_dispose() const SK_OVERRIDE;
 
     // Called the first time someone calls NewEmpty to initialize the singleton.
-    static SkData* NewEmptyImpl();
-    static void DeleteEmpty(SkData*);
+    friend SkData* sk_new_empty_data();
 
     // shared internal factory
     static SkData* PrivateNewWithCopy(const void* srcOrNull, size_t length);
 
     typedef SkRefCnt INHERITED;
 };
 
 /** Typedef of SkAutoTUnref<SkData> for automatically unref-ing a SkData. */
 typedef SkAutoTUnref<SkData> SkAutoDataUnref;
 
 #endif