Disable the old lock-screen shortcut

ash/common/accelerators/accelerator_table.cc

Index: ash/common/accelerators/accelerator_table.cc
diff --git a/ash/common/accelerators/accelerator_table.cc b/ash/common/accelerators/accelerator_table.cc
index 9d811195449eec6fd59c6c59a94c0fbab8559305..06ee31a0d6881be155dd4a2b3c9994c4c17d620c 100644
--- a/ash/common/accelerators/accelerator_table.cc
+++ b/ash/common/accelerators/accelerator_table.cc
@@ -215,9 +215,12 @@ const AcceleratorData kDeprecatedAccelerators[] = {
 const size_t kDeprecatedAcceleratorsLength = arraysize(kDeprecatedAccelerators);
 
 const DeprecatedAcceleratorData kDeprecatedAcceleratorsData[] = {
-    {LOCK_SCREEN, "Ash.Accelerators.Deprecated.LockScreen",
-     IDS_DEPRECATED_LOCK_SCREEN_MSG, IDS_SHORTCUT_LOCK_SCREEN_OLD,
-     IDS_SHORTCUT_LOCK_SCREEN_NEW, true},
+    {
+        LOCK_SCREEN, "Ash.Accelerators.Deprecated.LockScreen",
+        IDS_DEPRECATED_LOCK_SCREEN_MSG, IDS_SHORTCUT_LOCK_SCREEN_OLD,
+        IDS_SHORTCUT_LOCK_SCREEN_NEW,
+        false  // Old accelerator was disabled in M56.

[James Cook, 2016/11/14 22:09:10]

I like how you mentioned the milestone in the comment. It makes it much easier
for later readers to figure out when it can be totally removed.

[afakhry, 2016/11/14 22:48:47]

Thanks! That was the intent. :)

+    },
     {SHOW_TASK_MANAGER, "Ash.Accelerators.Deprecated.ShowTaskManager",
      IDS_DEPRECATED_SHOW_TASK_MANAGER_MSG, IDS_SHORTCUT_TASK_MANAGER_OLD,
      IDS_SHORTCUT_TASK_MANAGER_NEW, true},