Require explicit selection of traits for LazyInstance

components/mime_util/mime_util.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/mime_util/mime_util.h"
 
 #include <stddef.h>
 
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
@@ skipping 94 matching lines @@
 class MimeUtil {
  public:
   bool IsSupportedImageMimeType(const std::string& mime_type) const;
   bool IsSupportedNonImageMimeType(const std::string& mime_type) const;
   bool IsUnsupportedTextMimeType(const std::string& mime_type) const;
   bool IsSupportedJavascriptMimeType(const std::string& mime_type) const;
 
   bool IsSupportedMimeType(const std::string& mime_type) const;
 
  private:
-  friend struct base::DefaultLazyInstanceTraits<MimeUtil>;
+  friend struct base::LazyInstanceTraitsBase<MimeUtil>;
 
   using MimeTypes = base::hash_set<std::string>;
 
   MimeUtil();
 
   MimeTypes image_types_;
   MimeTypes non_image_types_;
   MimeTypes unsupported_text_types_;
   MimeTypes javascript_types_;
 
@@ skipping 68 matching lines @@
 
 bool IsSupportedJavascriptMimeType(const std::string& mime_type) {
   return g_mime_util.Get().IsSupportedJavascriptMimeType(mime_type);
 }
 
 bool IsSupportedMimeType(const std::string& mime_type) {
   return g_mime_util.Get().IsSupportedMimeType(mime_type);
 }
 
 }  // namespace mime_util