Update some uses of Value in chrome/browser to use the base:: namespace.

chrome/browser/chromeos/settings/device_oauth2_token_service_unittest.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/chromeos/settings/device_oauth2_token_service.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/run_loop.h"
 #include "chrome/browser/chromeos/settings/token_encryptor.h"
@@ skipping 100 matching lines @@
     SystemSaltGetter::Shutdown();
     DBusThreadManager::Shutdown();
     base::RunLoop().RunUntilIdle();
   }
 
   // Utility method to set a value in Local State for the device refresh token
   // (it must have a non-empty value or it won't be used).
   void SetDeviceRefreshTokenInLocalState(const std::string& refresh_token) {
     scoped_testing_local_state_.Get()->SetManagedPref(
         prefs::kDeviceRobotAnyApiRefreshToken,
-        Value::CreateStringValue(refresh_token));
+        base::Value::CreateStringValue(refresh_token));
   }
 
   std::string GetValidTokenInfoResponse(const std::string email) {
     return "{ \"email\": \"" + email + "\","
            "  \"user_id\": \"1234567890\" }";
   }
 
   // A utility method to return fake URL results, for testing the refresh token
   // validation logic.  For a successful validation attempt, this method will be
   // called three times for the steps listed below (steps 1 and 2 happen in
@@ skipping 253 matching lines @@
       kValidatorUrlFetcherId,
       net::HTTP_OK,
       GetValidTokenInfoResponse("service_acct@g.com"));
 
   // All fetches were successful, but consumer still given error since
   // the token owner doesn't match the policy value.
   AssertConsumerTokensAndErrors(0, 1);
 }
 
 }  // namespace chromeos