Adding mojo calls for easy unlock service

ash/login/lock_screen_controller.h

Index: ash/login/lock_screen_controller.h
diff --git a/ash/login/lock_screen_controller.h b/ash/login/lock_screen_controller.h
index 50bc9e526c9783507f1f3c0f0f778d70c6ebd2bb..da616ba8a6b690a165473312710789abfa372620 100644
--- a/ash/login/lock_screen_controller.h
+++ b/ash/login/lock_screen_controller.h
@@ -33,6 +33,16 @@ class ASH_EXPORT LockScreenController
                         const std::string& help_link_text,
                         int32_t help_topic_id) override;
   void ClearErrors() override;
+  void LoadUsers(std::unique_ptr<base::ListValue> users,

[xiyuan, 2017/05/31 17:51:18]

nit: Follow the declaration order in mojom

[xiaoyinh(OOO Sep 11-29), 2017/06/02 23:42:28]

Done.

+                 bool show_guest) override;
+

[xiyuan, 2017/05/31 17:51:18]

nit: no empty line to break the overridden interface block.

[xiaoyinh(OOO Sep 11-29), 2017/06/02 23:42:28]

Done.

+  void ShowUserPodCustomIcon(
+      const AccountId& account_id,
+      std::unique_ptr<base::DictionaryValue> icon) override;
+  void HideUserPodCustomIcon(const AccountId& account_id) override;
+  void SetAuthType(const AccountId& account_id,
+                   int auth_type,
+                   const std::string& initial_value) override;
 
   // Wrappers around the mojom::SystemTrayClient interface.

[xiyuan, 2017/05/31 17:51:18]

nit: This comment looks wrong.

[xiaoyinh(OOO Sep 11-29), 2017/06/02 23:42:28]

Oops, changed.

   // Hash the password and send AuthenticateUser request to LockScreenClient.
@@ -42,6 +52,9 @@ class ASH_EXPORT LockScreenController
   void AuthenticateUser(const AccountId& account_id,
                         const std::string& password,
                         bool authenticated_by_pin);
+  void AttemptUnlock(const AccountId& account_id);
+  void HardlockPod(const AccountId& account_id);
+  void RecordClickOnLockIcon(const AccountId& account_id);
 
  private:
   void DoAuthenticateUser(const AccountId& account_id,