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

chrome/browser/first_run/first_run.cc

 // 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.
 
 #include "chrome/browser/first_run/first_run.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 144 matching lines @@
 };
 
 // Installs a task to do an extensions update check once the extensions system
 // is running.
 void DoDelayedInstallExtensions() {
   new FirstRunDelayedTasks(FirstRunDelayedTasks::INSTALL_EXTENSIONS);
 }
 
 void DoDelayedInstallExtensionsIfNeeded(
     installer::MasterPreferences* install_prefs) {
-  DictionaryValue* extensions = 0;
+  base::DictionaryValue* extensions = 0;
   if (install_prefs->GetExtensionsBlock(&extensions)) {
     VLOG(1) << "Extensions block found in master preferences";
     DoDelayedInstallExtensions();
   }
 }
 
 base::FilePath GetDefaultPrefFilePath(bool create_profile_dir,
                                       const base::FilePath& user_data_dir) {
   base::FilePath default_pref_dir =
       profiles::GetDefaultProfileDir(user_data_dir);
@@ skipping 645 matching lines @@
   SetShouldDoPersonalDataManagerFirstRun();
 
   internal::DoPostImportPlatformSpecificTasks(profile);
 }
 
 uint16 auto_import_state() {
   return g_auto_import_state;
 }
 
 }  // namespace first_run