Auto-formatted all .mojom files.

mojo/services/authentication/interfaces/authentication.mojom

Index: mojo/services/authentication/interfaces/authentication.mojom
diff --git a/mojo/services/authentication/interfaces/authentication.mojom b/mojo/services/authentication/interfaces/authentication.mojom
index cc2a6f8a58fcf0667b1fa9e37c15f657f29a8839..6b9afc1cbdd3a6455ce71c416c369a027b333a0d 100644
--- a/mojo/services/authentication/interfaces/authentication.mojom
+++ b/mojo/services/authentication/interfaces/authentication.mojom
@@ -2,7 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-[DartPackage="mojo_services", JavaPackage="org.chromium.mojo.authentication"]
+[DartPackage="mojo_services",
+JavaPackage="org.chromium.mojo.authentication"]
 module authentication;
 
 // Interface to handle user identity and authentication tokens.
@@ -20,8 +21,7 @@ interface AuthenticationService {
   // Requests an oauth2 token for the given Google account with the given
   // scopes.  In case of error, username will be null and error will contain a
   // description of the error.
-  GetOAuth2Token(string username, array<string> scopes) =>
-      (string? token, string? error);
+  GetOAuth2Token(string username, array<string> scopes) => (string? token, string? error);
 
   // Requests to clear a previously acquired token. This should be called when a
   // token is refused by a server component before requesting a new token to