Implement app launch changes for app runtime extension proposal.

apps/launcher.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.
 
 #ifndef APPS_LAUNCHER_H_
 #define APPS_LAUNCHER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 23 matching lines @@
                                       const base::CommandLine& command_line,
                                       const base::FilePath& current_directory,
                                       extensions::AppLaunchSource source);
 
 // Launches the platform app |extension| by issuing an onLaunched event
 // with the contents of |file_path| available through the launch data.
 void LaunchPlatformAppWithPath(Profile* profile,
                                const extensions::Extension* extension,
                                const base::FilePath& file_path);
 
+// Launches the platform app |extension| with the specific |action_data|.
+// |file_path| is an optional argument and if present contains the file that the
+// app should open w.r.t. the given action.
+void LaunchPlatformAppWithAction(Profile* profile,
+                                 const extensions::Extension* extension,

[Devlin, 2016/08/11 20:51:20]

let's use |app| instead of |extension| (I know the other places call it
extension, but that's just awkward).

[jdufault, 2016/08/12 18:56:55]

Done.

+                                 const extensions::ActionData& action_data,
+                                 const base::FilePath& file_path);
+
 // Launches the platform app |extension|. |source| tells us how the app is
 // launched.
 void LaunchPlatformApp(Profile* profile,
                        const extensions::Extension* extension,
                        extensions::AppLaunchSource source);
 
 // Launches the platform app |extension| with |handler_id| and the contents of
 // |file_paths| available through the launch data. |handler_id| corresponds to
 // the id of the file_handlers item in the manifest that resulted in a match
 // that triggered this launch.
@@ skipping 12 matching lines @@
                               const std::string& handler_id,
                               const GURL& url,
                               const GURL& referrer_url);
 
 void RestartPlatformApp(Profile* profile,
                         const extensions::Extension* extension);
 
 }  // namespace apps
 
 #endif  // APPS_LAUNCHER_H_