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

chrome/browser/extensions/external_registry_loader_win.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/extensions/external_registry_loader_win.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_handle.h"
@@ skipping 36 matching lines @@
 void ExternalRegistryLoader::StartLoading() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&ExternalRegistryLoader::LoadOnFileThread, this));
 }
 
 void ExternalRegistryLoader::LoadOnFileThread() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   base::TimeTicks start_time = base::TimeTicks::Now();
-  scoped_ptr<DictionaryValue> prefs(new DictionaryValue);
+  scoped_ptr<base::DictionaryValue> prefs(new base::DictionaryValue);
 
   // A map of IDs, to weed out duplicates between HKCU and HKLM.
   std::set<base::string16> keys;
   base::win::RegistryKeyIterator iterator_machine_key(
       HKEY_LOCAL_MACHINE, ASCIIToWide(kRegistryExtensions).c_str());
   for (; iterator_machine_key.Valid(); ++iterator_machine_key)
     keys.insert(iterator_machine_key.Name());
   base::win::RegistryKeyIterator iterator_user_key(
       HKEY_CURRENT_USER, ASCIIToWide(kRegistryExtensions).c_str());
   for (; iterator_user_key.Valid(); ++iterator_user_key)
@@ skipping 95 matching lines @@
 
   prefs_.reset(prefs.release());
   HISTOGRAM_TIMES("Extensions.ExternalRegistryLoaderWin",
                   base::TimeTicks::Now() - start_time);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&ExternalRegistryLoader::LoadFinished, this));
 }
 
 }  // namespace extensions