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

chrome/browser/prerender/prerender_browsertest.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 <deque>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 1066 matching lines @@
   // or the channel for the renderer process is closed on the IO thread.  In the
   // last case, the code must be careful to wait for the channel to close, as it
   // is done asynchronously after swapping out the old process.  See
   // ChannelDestructionWatcher.
   bool IsEmptyPrerenderLinkManager() const {
     return GetPrerenderLinkManager()->IsEmpty();
   }
 
   // Returns length of |prerender_manager_|'s history, or -1 on failure.
   int GetHistoryLength() const {
-    scoped_ptr<DictionaryValue> prerender_dict(
-        static_cast<DictionaryValue*>(GetPrerenderManager()->GetAsValue()));
+    scoped_ptr<base::DictionaryValue> prerender_dict(
+        static_cast<base::DictionaryValue*>(
+            GetPrerenderManager()->GetAsValue()));
     if (!prerender_dict.get())
       return -1;
-    ListValue* history_list;
+    base::ListValue* history_list;
     if (!prerender_dict->GetList("history", &history_list))
       return -1;
     return static_cast<int>(history_list->GetSize());
   }
 
 #if defined(FULL_SAFE_BROWSING)
   FakeSafeBrowsingDatabaseManager* GetFakeSafeBrowsingDatabaseManager() {
     return safe_browsing_factory_->most_recent_service()->
         fake_database_manager();
   }
@@ skipping 2257 matching lines @@
   const NavigationController& controller = web_contents->GetController();
   // First entry is about:blank, second is prerender_page.html.
   EXPECT_TRUE(controller.GetPendingEntry() == NULL);
   EXPECT_EQ(2, controller.GetEntryCount());
   EXPECT_EQ(GURL(content::kAboutBlankURL),
             controller.GetEntryAtIndex(0)->GetURL());
   EXPECT_EQ(dest_url(), controller.GetEntryAtIndex(1)->GetURL());
 }
 
 }  // namespace prerender