Require SK_DECLARE_STATIC_LAZY_PTR is used in global scope.

src/core/SkData.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.
  */
 
 #include "SkData.h"
 #include "SkLazyPtr.h"
 #include "SkOSFile.h"
@@ skipping 74 matching lines @@
     char* storage = (char*)sk_malloc_throw(sizeof(SkData) + length);
     SkData* data = new (storage) SkData(length);
     if (srcOrNull) {
         memcpy(data->writable_data(), srcOrNull, length);
     }
     return data;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkData* SkData::NewEmptyImpl() {
-    return new SkData(NULL, 0, NULL, NULL);
-}
+// As a template argument these must have external linkage.
+SkData* sk_new_empty_data() { return new SkData(NULL, 0, NULL, NULL); }
+namespace { void sk_unref_data(SkData* ptr) { return SkSafeUnref(ptr); } }
 
-void SkData::DeleteEmpty(SkData* ptr) { SkDELETE(ptr); }
+SK_DECLARE_STATIC_LAZY_PTR(SkData, empty, sk_new_empty_data, sk_unref_data);
 
 SkData* SkData::NewEmpty() {
-    SK_DECLARE_STATIC_LAZY_PTR(SkData, empty, NewEmptyImpl, DeleteEmpty);
     return SkRef(empty.get());
 }
 
 // assumes fPtr was allocated via sk_malloc
 static void sk_free_releaseproc(const void* ptr, size_t, void*) {
     sk_free((void*)ptr);
 }
 
 SkData* SkData::NewFromMalloc(const void* data, size_t length) {
     return new SkData(data, length, sk_free_releaseproc, NULL);
@@ skipping 90 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 SkData* SkData::NewFromStream(SkStream* stream, size_t size) {
     SkAutoDataUnref data(SkData::NewUninitialized(size));
     if (stream->read(data->writable_data(), size) != size) {
         return NULL;
     }
     return data.detach();
 }