arc: Shuffle ArcAuthService's interface

components/arc/common/auth.mojom

Index: components/arc/common/auth.mojom
diff --git a/components/arc/common/auth.mojom b/components/arc/common/auth.mojom
index faa0c0fb2a6f24e2d84f7d0ff0baa00a95d838db..8a6ba3c0cf7aad641dc5ddbdd3d44254327a2ad5 100644
--- a/components/arc/common/auth.mojom
+++ b/components/arc/common/auth.mojom
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Next MinVersion: 5
+// Next MinVersion: 6
 
 module arc.mojom;
 
@@ -66,37 +66,66 @@ enum ArcSignInFailureReason {
 // These values describe the type of the Chrome account to provision.
 [Extensible]
 enum ChromeAccountType {
-    // Next value: 3
-    UNKNOWN = 0,
+  // Next value: 3
+  UNKNOWN = 0,
 
-    // Chrome login account type is a user account.
-    USER_ACCOUNT = 1,
+  // Chrome login account type is a user account.
+  USER_ACCOUNT = 1,
 
-    // Chrome login account type is a robot (service) account.
-    ROBOT_ACCOUNT = 2,
+  // Chrome login account type is a robot (service) account.
+  ROBOT_ACCOUNT = 2,
 };
 
+// The necessary information for Android to sign in and provision itself.
+struct AccountInfo {
+  // The authorization code that can be used in Android to sign in. If it is
+  // null, sign-in will be skipped.
+  string? auth_code;
+
+  // The type of Chrome account to provision.
+  ChromeAccountType account_type;
+
+  // Whether the account is managed from Chrome OS.
+  bool is_managed;
+};
+
+// Next Method ID: 7.
 interface AuthHost {
-  // Next Method ID: 6.
-  // Returns an authorization code, which can be used to sign in.
-  GetAuthCodeDeprecated@0() => (string auth_code);
-  // Returns an authorization code in case is_enforced is set, which can be used
-  // to sign in. By default the ChromeAccountType is USER_ACCOUNT.
-  [MinVersion=1] GetAuthCode@1() => (string auth_code, bool is_enforced);
-  // Returns an authorization code and its ChromeAccountType in case
-  // is_enforced is set, which can be used to sign in.
-  [MinVersion=4] GetAuthCodeAndAccountType@5() => (
-          string auth_code, bool is_enforced, ChromeAccountType account_type);
-  // Gets whether the account is managed from Chrome OS.
-  [MinVersion=3] GetIsAccountManaged@4() => (bool is_managed);
   // Notifies Chrome that the sign-in is completed successfully.
   [MinVersion=2] OnSignInComplete@2();
   // Notifies Chrome that the sign-in fails to complete and provides failure
   // reason.
   [MinVersion=2] OnSignInFailed@3(ArcSignInFailureReason reason);
+  // Asynchronously requests an authorization code, as well as the account
+  // information.
+  [MinVersion=5] RequestAccountInfo@7();
+
+  // Deprecated methods:
+
+  // Returns an authorization code, which can be used to sign in.
+  GetAuthCodeDeprecated0@0() => (string auth_code);
+  // Returns an authorization code in case is_enforced is set, which can be
+  // used to sign in. By default the ChromeAccountType is USER_ACCOUNT.
+  [MinVersion=1] GetAuthCodeDeprecated@1() => (string auth_code,
+                                               bool is_enforced);
+  // Returns an authorization code and its ChromeAccountType in case
+  // is_enforced is set, which can be used to sign in.
+  [MinVersion=4] GetAuthCodeAndAccountTypeDeprecated@5() => (
+          string auth_code, bool is_enforced, ChromeAccountType account_type);
+  // Gets whether the account is managed from Chrome OS.
+  [MinVersion=3] GetIsAccountManagedDeprecated@4() => (bool is_managed);
 };
 
+// Next Method ID: 2
 interface AuthInstance {
   // Establishes full-duplex communication with the host.
   Init@0(AuthHost host_ptr);
+
+  // Callback from RequestAccountInfo. This cannot be a normal callback since
+  // the result can sometimes take a few minutes in some cases (Kiosk mode),
+  // and in other cases there is a UI that the user is shown and they can take
+  // an arbitrarily long amount of time to interact with.
+  // If |account_info| is null, it implies that there was an error in the
+  // process.
+  [MinVersion=5] OnAccountInfoReady(AccountInfo? account_info);
 };