Auto-formatted all .mojom files.

mojom/mojom_parser/examples/example.mojom

 // Copyright 2016 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 sample;
 
 enum EnumeratedValue {
-  VALUE1, VALUE2, VALUE3,
+  VALUE1,
+  VALUE2,
+  VALUE3,
 };
 
 struct StructuredData {
   EnumeratedValue data1;
   int32 data2;
 };
 
 interface Interface {
   SomeMethod();
 };
 
 union AlternativeOptions {
   int32 integer_option;
   float floating_point_option;
 };
 
 const int32 DOES_NOT_CHANGE = 42;