Move base/values.h into the base namespace.

chrome/test/webdriver/utility_functions.h

 // Copyright (c) 2011 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 CHROME_TEST_WEBDRIVER_UTILITY_FUNCTIONS_H_
 #define CHROME_TEST_WEBDRIVER_UTILITY_FUNCTIONS_H_
 
 #include <string>
 
+namespace base {
 class Value;
+}
 
 namespace webdriver {
 
 // Generates a random, 32-character hexidecimal ID.
 std::string GenerateRandomID();
 
 // Returns the equivalent JSON string for the given value.
-std::string JsonStringify(const Value* value);
+std::string JsonStringify(const base::Value* value);
 
 }  // namespace webdriver
 
 #endif  // CHROME_TEST_WEBDRIVER_UTILITY_FUNCTIONS_H_