Move the number conversions from string_util to a new file....

chrome/test/sync/engine/test_id_factory.h

 // Copyright (c) 2009 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.
 //
 // A tool making it easier to create IDs for unit testing.
 
 #ifndef CHROME_TEST_SYNC_ENGINE_TEST_ID_FACTORY_H_
 #define CHROME_TEST_SYNC_ENGINE_TEST_ID_FACTORY_H_
 #pragma once
 
 #include <string>
 
-#include "base/string_util.h"
+#include "base/string_number_conversions.h"
 #include "chrome/browser/sync/syncable/syncable_id.h"
 
 namespace browser_sync {
 
 class TestIdFactory {
  public:
   TestIdFactory() : next_value_(1337000) {}
   ~TestIdFactory() {}
 
   // Get the root ID.
   static syncable::Id root() {
     return syncable::Id();
   }
 
   // Make an ID from a number.  If the number is zero, return the root ID.
   // If the number is positive, create a server ID based on the value.  If
   // the number is negative, create a local ID based on the value.  This
   // is deterministic, and [FromNumber(X) == FromNumber(Y)] iff [X == Y].
   static syncable::Id FromNumber(int64 value) {
     if (value == 0)
       return root();
     else if (value < 0)
-      return syncable::Id::CreateFromClientString(Int64ToString(value));
+      return syncable::Id::CreateFromClientString(base::Int64ToString(value));
     else
-      return syncable::Id::CreateFromServerId(Int64ToString(value));
+      return syncable::Id::CreateFromServerId(base::Int64ToString(value));
   }
 
   // Create a local ID from a name.
   static syncable::Id MakeLocal(std::string name) {
     return syncable::Id::CreateFromClientString(std::string("lient ") + name);
   }
 
   // Create a server ID from a string name.
   static syncable::Id MakeServer(std::string name) {
     return syncable::Id::CreateFromServerId(std::string("erver ") + name);
   }
 
   // Autogenerate a fresh local ID.
   syncable::Id NewLocalId() {
     return syncable::Id::CreateFromClientString(
-        std::string("_auto ") + IntToString(-next_value()));
+        std::string("_auto ") + base::IntToString(-next_value()));
   }
 
   // Autogenerate a fresh server ID.
   syncable::Id NewServerId() {
     return syncable::Id::CreateFromServerId(
-        std::string("_auto ") + IntToString(next_value()));
+        std::string("_auto ") + base::IntToString(next_value()));
   }
 
  private:
   int next_value() {
     return next_value_++;
   }
   int next_value_;
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_TEST_SYNC_ENGINE_TEST_ID_FACTORY_H_