Introduce ash mojo interface for lock screen action handlers

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc

Index: chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
diff --git a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
index e3367cc6e6974d55d5ee0029bb10c2dc9ec4980e..f890722623f1b4a4e4a67fc897298560cb59c153 100644
--- a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
+++ b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
@@ -13,12 +13,14 @@
 #include "ash/shell.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/chrome_browser_main.h"
+#include "chrome/browser/chromeos/lock_screen_apps/state_controller.h"
 #include "chrome/browser/ui/ash/ash_init.h"
 #include "chrome/browser/ui/ash/ash_util.h"
 #include "chrome/browser/ui/ash/cast_config_client_media_router.h"
 #include "chrome/browser/ui/ash/chrome_new_window_client.h"
 #include "chrome/browser/ui/ash/chrome_shell_content_state.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
+#include "chrome/browser/ui/ash/lock_screen_action_handler.h"
 #include "chrome/browser/ui/ash/media_client.h"
 #include "chrome/browser/ui/ash/session_controller_client.h"
 #include "chrome/browser/ui/ash/system_tray_client.h"
@@ -75,6 +77,9 @@ void ChromeBrowserMainExtraPartsAsh::PreProfileInit() {
     immersive_handler_factory_ = base::MakeUnique<ImmersiveHandlerFactoryMus>();
   }
 
+  lock_screen_action_handler_ = base::MakeUnique<LockScreenActionHandler>(
+      lock_screen_apps::StateController::Get());
+  lock_screen_action_handler_->Init();
   session_controller_client_ = base::MakeUnique<SessionControllerClient>();
   session_controller_client_->Init();