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

chrome/browser/prerender/prerender_contents.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/prerender/prerender_contents.h"
 
 #include <algorithm>
 #include <functional>
 #include <utility>
 
@@ skipping 712 matching lines @@
     const history::HistoryAddPageArgs& add_page_args) {
   add_page_vector_.push_back(add_page_args);
 }
 
 void PrerenderContents::CommitHistory(WebContents* tab) {
   HistoryTabHelper* history_tab_helper = HistoryTabHelper::FromWebContents(tab);
   for (size_t i = 0; i < add_page_vector_.size(); ++i)
     history_tab_helper->UpdateHistoryForNavigation(add_page_vector_[i]);
 }
 
-Value* PrerenderContents::GetAsValue() const {
+base::Value* PrerenderContents::GetAsValue() const {
   if (!prerender_contents_.get())
     return NULL;
-  DictionaryValue* dict_value = new DictionaryValue();
+  base::DictionaryValue* dict_value = new base::DictionaryValue();
   dict_value->SetString("url", prerender_url_.spec());
   base::TimeTicks current_time = base::TimeTicks::Now();
   base::TimeDelta duration = current_time - load_start_time_;
   dict_value->SetInteger("duration", duration.InSeconds());
   dict_value->SetBoolean("is_loaded", prerender_contents_ &&
                                       !prerender_contents_->IsLoading());
   return dict_value;
 }
 
 bool PrerenderContents::IsCrossSiteNavigationPending() const {
   if (!prerender_contents_)
     return false;
   return (prerender_contents_->GetSiteInstance() !=
           prerender_contents_->GetPendingSiteInstance());
 }
 
 SessionStorageNamespace* PrerenderContents::GetSessionStorageNamespace() const {
   if (!prerender_contents())
     return NULL;
   return prerender_contents()->GetController().
       GetDefaultSessionStorageNamespace();
 }
 
 void PrerenderContents::OnCancelPrerenderForPrinting() {
   Destroy(FINAL_STATUS_WINDOW_PRINT);
 }
 
 }  // namespace prerender