file_manager: getFileTasks() to return Drive apps iff all files are on Drive

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

 // 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.
 //
 // This file provides utility functions for "file tasks".
 //
 // WHAT ARE FILE TASKS?
 //
 // File tasks are representatiosn of actions that can be performed over the
 // currently selected files from Files.app. A task can be either of:
@@ skipping 162 matching lines @@
   // The icon URL for the task (ex. app icon)
   const GURL& icon_url() const { return icon_url_; }
 
   // True if this task is set as default.
   bool is_default() const { return is_default_; }
   void set_is_default(bool is_default) { is_default_ = is_default; }
 
   // Returns a DictionaryValue representation, which looks like:
   //
   // {
-  //   "driveApp": true,
   //   "iconUrl": "<app_icon_url>",
   //   "isDefault": false,
   //   "taskId": "<drive_app_id>|drive|open-with",
   //   "title": "Drive App Name (ex. Pixlr Editor)"
   // },
   //
   // "iconUrl" is omitted if icon_url_ is empty.
   //
   // This representation will be used to send task info to the JavaScript.
   scoped_ptr<base::DictionaryValue> AsDictionaryValue() const;
@@ skipping 69 matching lines @@
                      const GURL& source_url,
                      const std::string& app_id,
                      int32 tab_id,
                      const TaskDescriptor& task,
                      const std::vector<fileapi::FileSystemURL>& file_urls,
                      const FileTaskFinishedCallback& done);
 
 typedef extensions::app_file_handler_util::PathAndMimeTypeSet
     PathAndMimeTypeSet;
 
-// Finds the drive app tasks that can be used with the given |path_mime_set|
+// Finds the Drive app tasks that can be used with the given |path_mime_set|
 // from |drive_app_registry|, and append them to the |result_list|.
+// Drive app tasks will be found only if all of the files are on Drive.
 void FindDriveAppTasks(const drive::DriveAppRegistry& drive_app_registry,
                        const PathAndMimeTypeSet& path_mime_set,
                        std::vector<FullTaskDescriptor>* result_list);
 
 // Finds the file handler tasks (apps declaring "file_handlers" in
 // manifest.json) that can be used with the given files, appending them to
 // the |result_list|.
 void FindFileHandlerTasks(Profile* profile,
                           const PathAndMimeTypeSet& path_mime_set,
                           std::vector<FullTaskDescriptor>* result_list);
 
 // Finds the file browser handler tasks (app/extensions declaring
 // "file_browser_handlers" in manifest.json) that can be used with the
 // given files, appending them to the |result_list|.
 void FindFileBrowserHandlerTasks(
     Profile* profile,
     const std::vector<GURL>& file_urls,
     std::vector<FullTaskDescriptor>* result_list);
 
 // Finds all types (drive, file handlers, file browser handlers) of
 // tasks. See the comment at FindDriveAppTasks() about |result_list|.
+// Drive app tasks will be found only if all of the files are on Drive.
 void FindAllTypesOfTasks(
     Profile* profile,
     const PathAndMimeTypeSet& path_mime_set,
     const std::vector<GURL>& file_urls,
     std::vector<FullTaskDescriptor>* result_list);
 
 // Chooses the default task in |tasks| and sets it as default, if the default
 // task is found (i.e. the default task may not exist in |tasks|). No tasks
 // should be set as default before calling this function.
 void ChooseAndSetDefaultTask(const PrefService& pref_service,
                              const PathAndMimeTypeSet& path_mime_set,
                              std::vector<FullTaskDescriptor>* tasks);
 
 }  // namespace file_tasks
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_TASKS_H_