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

chrome/browser/chromeos/login/wallpaper_manager.cc

 // Copyright (c) 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/login/wallpaper_manager.h"
 
 #include <vector>
 
 #include "ash/shell.h"
 #include "base/command_line.h"
@@ skipping 837 matching lines @@
 
   if (UserManager::Get()->IsUserNonCryptohomeDataEphemeral(email)) {
     // Default to the values cached in memory.
     *info = current_user_wallpaper_info_;
 
     // Ephemeral users do not save anything to local state. But we have got
     // wallpaper info from memory. Returns true.
     return true;
   }
 
-  const DictionaryValue* user_wallpapers = g_browser_process->local_state()->
-      GetDictionary(prefs::kUsersWallpaperInfo);
+  const base::DictionaryValue* user_wallpapers =
+      g_browser_process->local_state()->
+          GetDictionary(prefs::kUsersWallpaperInfo);
   const base::DictionaryValue* wallpaper_info_dict;
   if (user_wallpapers->GetDictionaryWithoutPathExpansion(
           email, &wallpaper_info_dict)) {
     info->file = "";
     info->layout = ash::WALLPAPER_LAYOUT_CENTER_CROPPED;
     info->type = User::UNKNOWN;
     info->date = base::Time::Now().LocalMidnight();
     wallpaper_info_dict->GetString(kNewWallpaperFileNodeName, &(info->file));
     int temp;
     wallpaper_info_dict->GetInteger(kNewWallpaperLayoutNodeName, &temp);
@@ skipping 208 matching lines @@
 
   wallpaper_loader_->Start(wallpaper_path.value(), 0,
                            base::Bind(&WallpaperManager::OnWallpaperDecoded,
                                       base::Unretained(this),
                                       email,
                                       info.layout,
                                       update_wallpaper));
 }
 
 }  // namespace chromeos