Disable the old lock-screen shortcut

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 93bc0b50461a431d12538d9c1b01dd3794e62878..cb99f264c75377dc0e36b5920460894df9eae952 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -941,8 +941,8 @@ 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
 }