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

chrome/browser/chromeos/extensions/wallpaper_private_api.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/extensions/wallpaper_private_api.h"
 
 #include <vector>
 
 #include "ash/ash_switches.h"
 #include "ash/desktop_background/desktop_background_controller.h"
@@ skipping 215 matching lines @@
            user_id_hash_window_list_map_.begin();
        iter != user_id_hash_window_list_map_.end();
        ++iter) {
     iter->second.erase(window);
   }
 }
 
 }  // namespace
 
 bool WallpaperPrivateGetStringsFunction::RunImpl() {
-  DictionaryValue* dict = new DictionaryValue();
+  base::DictionaryValue* dict = new base::DictionaryValue();
   SetResult(dict);
 
 #define SET_STRING(id, idr) \
   dict->SetString(id, l10n_util::GetStringUTF16(idr))
   SET_STRING("webFontFamily", IDS_WEB_FONT_FAMILY);
   SET_STRING("webFontSize", IDS_WEB_FONT_SIZE);
   SET_STRING("allCategoryLabel", IDS_WALLPAPER_MANAGER_ALL_CATEGORY_LABEL);
   SET_STRING("deleteCommandLabel", IDS_WALLPAPER_MANAGER_DELETE_COMMAND_LABEL);
   SET_STRING("customCategoryLabel",
              IDS_WALLPAPER_MANAGER_CUSTOM_CATEGORY_LABEL);
@@ skipping 588 matching lines @@
     }
   }
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&WallpaperPrivateGetOfflineWallpaperListFunction::OnComplete,
                  this, file_list));
 }
 
 void WallpaperPrivateGetOfflineWallpaperListFunction::OnComplete(
     const std::vector<std::string>& file_list) {
-  ListValue* results = new ListValue();
+  base::ListValue* results = new base::ListValue();
   results->AppendStrings(file_list);
   SetResult(results);
   SendResponse(true);
 }