Move Singleton and related structs to namespace base

chrome/browser/local_discovery/privet_url_fetcher.cc

 // Copyright 2013 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 "chrome/browser/local_discovery/privet_url_fetcher.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
@@ skipping 12 matching lines @@
 
 namespace local_discovery {
 
 namespace {
 
 typedef std::map<std::string, std::string> TokenMap;
 
 struct TokenMapHolder {
  public:
   static TokenMapHolder* GetInstance() {
-    return Singleton<TokenMapHolder>::get();
+    return base::Singleton<TokenMapHolder>::get();
   }
 
   TokenMap map;
 };
 
 const char kXPrivetTokenHeaderPrefix[] = "X-Privet-Token: ";
 const char kPrivetV3AuthTokenHeaderPrefix[] = "Authorization: ";
 const char kRangeHeaderFormat[] = "Range: bytes=%d-%d";
 const char kXPrivetEmptyToken[] = "\"\"";
 const char kPrivetAuthTokenUnknown[] = "Unknown";
@@ skipping 328 matching lines @@
 }
 
 bool PrivetURLFetcher::PrivetErrorTransient(const std::string& error) {
   return (error == kPrivetErrorDeviceBusy) ||
          (error == kPrivetV3ErrorDeviceBusy) ||
          (error == kPrivetErrorPendingUserAction) ||
          (error == kPrivetErrorPrinterBusy);
 }
 
 }  // namespace local_discovery