Auto-formatted all .mojom files.

shell/child_controller.mojom

 // Copyright 2014 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.
 
 module shell;
 
 import "mojo/public/interfaces/application/application.mojom";
 
 interface ChildController {
   // Starts the app at the given path.
-  StartApp(string app_path,
-           mojo.Application& application_request) => (int32 result);
+  StartApp(string app_path, mojo.Application& application_request)
+      => (int32 result);
 
   // Exits the child process now (with no cleanup), with the given exit code.
   ExitNow(int32 exit_code);
 };