Convert most of extensions and some other random stuff to using the base namespace for Values.

chrome/browser/extensions/api/file_system/file_system_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/file_system/file_system_api.h"
 
 #include "apps/saved_files_service.h"
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
@@ skipping 387 matching lines @@
   fileapi::IsolatedContext* isolated_context =
       fileapi::IsolatedContext::GetInstance();
   DCHECK(isolated_context);
 
   bool writable = entry_type == WRITABLE;
   extensions::app_file_handler_util::GrantedFileEntry file_entry =
       extensions::app_file_handler_util::CreateFileEntry(profile(),
           GetExtension()->id(), render_view_host_->GetProcess()->GetID(), path,
           writable);
 
-  DictionaryValue* dict = new DictionaryValue();
+  base::DictionaryValue* dict = new base::DictionaryValue();
   SetResult(dict);
   dict->SetString("fileSystemId", file_entry.filesystem_id);
   dict->SetString("baseName", file_entry.registered_name);
   if (id.empty())
     dict->SetString("id", file_entry.id);
   else
     dict->SetString("id", id);
 
   SendResponse(true);
 }
@@ skipping 422 matching lines @@
     // ID that was passed to restoreEntry.
     RegisterFileSystemAndSendResponseWithIdOverride(
         file_entry->path,
         file_entry->writable ? WRITABLE : READ_ONLY,
         file_entry->id);
   }
   return true;
 }
 
 }  // namespace extensions