file_manager: IsFallbackFileBrowserHandler() to take TaskDescriptor

chrome/browser/chromeos/extensions/file_manager/file_browser_handlers.h

 // Copyright 2013 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.
 //
 // This file provides utility functions for file browser handlers.
 // https://developer.chrome.com/extensions/fileBrowserHandler.html
 
 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLERS_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLERS_H_
 
@@ skipping 20 matching lines @@
 namespace fileapi {
 class FileSystemURL;
 }
 
 namespace file_manager {
 namespace file_browser_handlers {
 
 // Tasks are stored as a vector in order of priorities.
 typedef std::vector<const FileBrowserHandler*> FileBrowserHandlerList;
 
-// Returns true if the given file browser handler should be used as a
-// fallback. Such handlers are Files.app's internal handlers as well as quick
-// office extensions.
-bool IsFallbackFileBrowserHandler(const FileBrowserHandler* handler);
+// Returns true if the given task is a fallback file browser handler. Such
+// handlers are Files.app's internal handlers as well as quick office
+// extensions.
+bool IsFallbackFileBrowserHandler(const file_tasks::TaskDescriptor& task);
 
 // Finds file browser handlers set as default from |common_tasks| for
 // |file_list|. If no handlers are set as default, choose the the firstly
 // found fallback handler as default.
 FileBrowserHandlerList FindDefaultFileBrowserHandlers(
     const PrefService& pref_service,
     const std::vector<base::FilePath>& file_list,
     const FileBrowserHandlerList& common_tasks);
 
 // Returns the list of file browser handlers that can open all files in
@@ skipping 21 matching lines @@
     const extensions::Extension* extension,
     int32 tab_id,
     const std::string& action_id,
     const std::vector<fileapi::FileSystemURL>& file_urls,
     const file_tasks::FileTaskFinishedCallback& done);
 
 }  // namespace file_browser_handlers
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLERS_H_