Adding mojo calls for easy unlock service

ash/public/interfaces/lock_screen.mojom

 // Copyright 2017 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 ash.mojom;
 
 import "components/signin/public/interfaces/account_id.mojom";
+import "mojo/common/string16.mojom";
+import "mojo/common/values.mojom";
+
+// Supported authentication types. Keep in sync with enum in
+// screenlock_bridge.h
+enum AuthType {
+  OFFLINE_PASSWORD,
+  ONLINE_SIGN_IN,
+  NUMERIC_PIN,
+  USER_CLICK,
+  EXPAND_THEN_USER_CLICK,
+  FORCE_OFFLINE_PASSWORD,
+};
+
+// Information about the custom icon in the user pod.
+struct UserPodCustomIconOptions {
+  string id;
+  mojo.common.mojom.String16 tooltip;
+  bool autoshow_tooltip;
+  mojo.common.mojom.String16 aria_label;
+  bool hardlock_on_click;
+  bool is_trial_run;
+};
 
 // Allows clients (e.g. Chrome browser) to control the ash lock screen.
 interface LockScreen {
   // Sets the client interface.
   SetClient(LockScreenClient client);
 
   // Requests to show error message in the ash lock screen.
   // TODO(xiaoyinh): login_attempts is probabaly not needed from chrome,
   // remove it when we start to count the login attempts in ash lock screen.
   // |login_attempts|: The number of the login authentication attempts.
   // |error_text|:     The error text to be shown in lock screen.
   // |help_link_text|: The help link to be shown in lock screen.
   // |help_topic_id|:  The id of the help app topic regarding this error.
   ShowErrorMessage(int32 login_attempts,
                    string error_text,
                    string help_link_text,
                    int32 help_topic_id);
 
   // Requests to close any displayed error messages in ash lock screen.
   ClearErrors();
+
+  // Requests to show the custom icon in the user pod.
+  // |account_id|:  The account id of the user in the user pod.
+  // |icon|:        Information regarding the icon.
+  ShowUserPodCustomIcon(signin.mojom.AccountId account_id,
+                        UserPodCustomIconOptions icon);
+
+  // Requests to hide the custom icon in the user pod.
+  // |account_id|:  The account id of the user in the user pod.
+  HideUserPodCustomIcon(signin.mojom.AccountId account_id);
+
+  // Requests to set the authentication type.
+  // |account_id|:    The account id of the user in the user pod.
+  // |auth_type|:     Authentication type.
+  // |initial_value|: A message shown in the password field of the user pod.
+  SetAuthType(signin.mojom.AccountId account_id,
+              AuthType auth_type,
+              mojo.common.mojom.String16 initial_value);
+
+  // Requests to load users in the lock screen.
+  // TODO: create a mojo struct for |users|, this contains user information
+  // for login/lock screen, some of which might not be needed for the new
+  // view-based UI. See crbug.com/729687.
+  // |users|:      A list of users who can unlock the device.
+  // |show_guest|: Whether to show guest session button.
+  LoadUsers(mojo.common.mojom.ListValue users, bool show_guest);
 };
 
 // Allows ash lock screen to control a client (e.g. Chrome browser). Requests
 // often involve preferences or talk to cryptohome that is not available to ash.
 interface LockScreenClient {
   // Request user authentication in chrome.
   // If auth succeeds:
   // chrome will hide the lock screen and clear any displayed error messages.
   // If auth fails:
   // chrome will request lock screen to show error messages.
   // |account_id|:           The account id of the user we are authenticating.
   // |hashed_password|:      The hashed password of the user.
   // |authenticated_by_pin|: True if we are using pin to authenticate.
   AuthenticateUser(signin.mojom.AccountId account_id,
                    string hashed_password,
                    bool authenticated_by_pin);
+
+  // Request to attempt easy unlock in chrome.
+  // |account_id|:   The account id of the user we are authenticating.
+  AttemptUnlock(signin.mojom.AccountId account_id);
+
+  // Request to hard lock the user pod.
+  // |account_id|:    The account id of the user in the user pod.
+  HardlockPod(signin.mojom.AccountId account_id);
+
+  // Record clicks on the lock icon in the user pod.
+  // |account_id|:    The account id of the user in the user pod.
+  RecordClickOnLockIcon(signin.mojom.AccountId account_id);
 };