Disable the old lock-screen shortcut

ash/mus/accelerators/accelerator_controller_unittest.cc

Index: ash/mus/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/mus/accelerators/accelerator_controller_unittest.cc b/ash/mus/accelerators/accelerator_controller_unittest.cc
index 7e08b15f078f0bc58428e97952bb95988ed809f3..d5f27ca0fb7066a51e598c1a66dc4cd510112d6a 100644
--- a/ash/mus/accelerators/accelerator_controller_unittest.cc
+++ b/ash/mus/accelerators/accelerator_controller_unittest.cc
@@ -916,8 +916,8 @@ TEST_F(AcceleratorControllerTest, GlobalAccelerators) {
   // NOTE: Accelerators that do not work on the lock screen need to be
   // tested before the sequence below is invoked because it causes a side
   // effect of locking the screen.
-  EXPECT_TRUE(ProcessInController(
-      ui::Accelerator(ui::VKEY_L, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN)));
+  EXPECT_TRUE(
+      ProcessInController(ui::Accelerator(ui::VKEY_L, ui::EF_COMMAND_DOWN)));
 #endif
 }