Allow manifest handlers to declare keys they depend on that must be parsed before them.

chrome/browser/chromeos/extensions/file_browser_private_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/chromeos/extensions/file_browser_private_api.h"
 
 #include <sys/stat.h>
 #include <sys/statvfs.h>
 #include <sys/types.h>
 #include <utime.h>
@@ skipping 556 matching lines @@
   int child_id_;
   // Extension source URL.
   scoped_refptr<const Extension> extension_;
   DISALLOW_COPY_AND_ASSIGN(LocalFileSystemCallbackDispatcher);
 };
 
 FileBrowserPrivateAPI::FileBrowserPrivateAPI(Profile* profile)
     : event_router_(make_scoped_refptr(new FileBrowserEventRouter(profile))) {
   extensions::ManifestHandler::Register(
       extension_manifest_keys::kFileBrowserHandlers,
-      new FileBrowserHandlerParser);
+      make_linked_ptr(new FileBrowserHandlerParser));
 
   ExtensionFunctionRegistry* registry =
       ExtensionFunctionRegistry::GetInstance();
   registry->RegisterFunction<CancelFileDialogFunction>();
   registry->RegisterFunction<ExecuteTasksFileBrowserFunction>();
   registry->RegisterFunction<SetDefaultTaskFileBrowserFunction>();
   registry->RegisterFunction<FileDialogStringsFunction>();
   registry->RegisterFunction<GetFileTasksFileBrowserFunction>();
   registry->RegisterFunction<GetVolumeMetadataFunction>();
   registry->RegisterFunction<RequestLocalFileSystemFunction>();
@@ skipping 2553 matching lines @@
 
   zip_file_creator_->Start();
   return true;
 }
 
 void ZipSelectionFunction::OnZipDone(bool success) {
   SetResult(new base::FundamentalValue(success));
   SendResponse(true);
   Release();
 }