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

chrome/browser/extensions/api/management/management_api.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/api/management/management_api.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 305 matching lines @@
                           OnJSONParseSucceeded)
       IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ParseJSON_Failed,
                           OnJSONParseFailed)
       IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
     return handled;
   }
 
   void OnJSONParseSucceeded(const base::ListValue& wrapper) {
     CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-    const Value* value = NULL;
+    const base::Value* value = NULL;
     CHECK(wrapper.Get(0, &value));
-    if (value->IsType(Value::TYPE_DICTIONARY))
+    if (value->IsType(base::Value::TYPE_DICTIONARY))
       parsed_manifest_.reset(
           static_cast<const base::DictionaryValue*>(value)->DeepCopy());
     else
       error_ = keys::kManifestParseError;
 
     BrowserThread::PostTask(
         BrowserThread::UI,
         FROM_HERE,
         base::Bind(&SafeManifestJSONParser::ReportResultFromUIThread, this));
   }
@@ skipping 386 matching lines @@
 ProfileKeyedAPIFactory<ManagementAPI>* ManagementAPI::GetFactoryInstance() {
   return &g_factory.Get();
 }
 
 void ManagementAPI::OnListenerAdded(const EventListenerInfo& details) {
   management_event_router_.reset(new ManagementEventRouter(profile_));
   ExtensionSystem::Get(profile_)->event_router()->UnregisterObserver(this);
 }
 
 }  // namespace extensions