Move Singleton and related structs to namespace base

net/tools/quic/quic_in_memory_cache.h

 // 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.
 
 #ifndef NET_TOOLS_QUIC_QUIC_IN_MEMORY_CACHE_H_
 #define NET_TOOLS_QUIC_QUIC_IN_MEMORY_CACHE_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/singleton.h"
 #include "base/strings/string_piece.h"
 #include "net/spdy/spdy_framer.h"
 
+namespace base {
+
 template <typename Type> struct DefaultSingletonTraits;
 
+}  // namespace base
+
 namespace net {
 namespace tools {
 
 namespace test {
 class QuicInMemoryCachePeer;
 }  // namespace test
 
 class QuicServer;
 
 // In-memory cache for HTTP responses.
@@ skipping 65 matching lines @@
   // Sets a default response in case of cache misses.  Takes ownership of
   // 'response'.
   void AddDefaultResponse(Response* response);
 
   // |cache_cirectory| can be generated using `wget -p --save-headers <url>`.
   void InitializeFromDirectory(const std::string& cache_directory);
 
  private:
   typedef base::hash_map<std::string, Response*> ResponseMap;
 
-  friend struct DefaultSingletonTraits<QuicInMemoryCache>;
+  friend struct base::DefaultSingletonTraits<QuicInMemoryCache>;
   friend class test::QuicInMemoryCachePeer;
 
   QuicInMemoryCache();
   ~QuicInMemoryCache();
 
   void ResetForTests();
 
   void AddResponseImpl(base::StringPiece host,
                        base::StringPiece path,
                        SpecialResponseType response_type,
                        const SpdyHeaderBlock& response_headers,
                        base::StringPiece response_body);
 
   std::string GetKey(base::StringPiece host, base::StringPiece path) const;
 
   // Cached responses.
   ResponseMap responses_;
 
   // The default response for cache misses, if set.
   scoped_ptr<Response> default_response_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicInMemoryCache);
 };
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_IN_MEMORY_CACHE_H_