Require explicit selection of traits for LazyInstance

net/base/mime_util.cc

 // Copyright (c) 2012 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 <algorithm>
 #include <iterator>
 #include <map>
 #include <string>
 #include <unordered_set>
 
@@ skipping 30 matching lines @@
   bool MatchesMimeType(const std::string &mime_type_pattern,
                        const std::string &mime_type) const;
 
   bool ParseMimeTypeWithoutParameter(const std::string& type_string,
                                      std::string* top_level_type,
                                      std::string* subtype) const;
 
   bool IsValidTopLevelMimeType(const std::string& type_string) const;
 
  private:
-  friend struct base::DefaultLazyInstanceTraits<MimeUtil>;
+  friend struct base::LazyInstanceTraitsBase<MimeUtil>;
 
   MimeUtil();
 
   bool GetMimeTypeFromExtensionHelper(const base::FilePath::StringType& ext,
                                       bool include_platform_types,
                                       std::string* mime_type) const;
 };  // class MimeUtil
 
 // This variable is Leaky because we need to access it from WorkerPool threads.
 static base::LazyInstance<MimeUtil>::Leaky g_mime_util =
@@ skipping 576 matching lines @@
   post_data->append("\r\n" + value + "\r\n");
 }
 
 void AddMultipartFinalDelimiterForUpload(const std::string& mime_boundary,
                                          std::string* post_data) {
   DCHECK(post_data);
   post_data->append("--" + mime_boundary + "--\r\n");
 }
 
 }  // namespace net