Adding mojo calls for easy unlock service

ash/public/interfaces/lock_screen.mojom

Index: ash/public/interfaces/lock_screen.mojom
diff --git a/ash/public/interfaces/lock_screen.mojom b/ash/public/interfaces/lock_screen.mojom
index d29b331e358a170c9d54b99bd61f448b5cece027..0b4a1417191f445f44e381bc5974d67cd0d8b3d5 100644
--- a/ash/public/interfaces/lock_screen.mojom
+++ b/ash/public/interfaces/lock_screen.mojom
@@ -5,6 +5,29 @@
 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 {
@@ -25,6 +48,32 @@ interface LockScreen {
 
   // 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
@@ -41,4 +90,16 @@ interface LockScreenClient {
   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);
 };