Disable the deprecated Alt+Shift for NEXT_IME

ash/accelerators/accelerator_table.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/accelerators/accelerator_table.h"
 
 #include "ash/strings/grit/ash_strings.h"
 #include "base/macros.h"
 
 namespace ash {
@@ skipping 228 matching lines @@
     IDS_SHORTCUT_TASK_MANAGER_OLD,
     IDS_SHORTCUT_TASK_MANAGER_NEW,
     true
   },
   {
     NEXT_IME,
     "Ash.Accelerators.Deprecated.NextIME",
     IDS_DEPRECATED_NEXT_IME_MSG,
     IDS_SHORTCUT_NEXT_IME_OLD,
     IDS_SHORTCUT_NEXT_IME_NEW,
-    true
+    false  // Old accelerator has been disabled.
   }
 };
 
 const size_t kDeprecatedAcceleratorsDataLength =
     arraysize(kDeprecatedAcceleratorsData);
 
 #endif  // defined(OS_CHROMEOS)
 
 const AcceleratorData kDebugAcceleratorData[] = {
 #if defined(OS_CHROMEOS)
@@ skipping 297 matching lines @@
     TOGGLE_WIFI,
     VOLUME_DOWN,
     VOLUME_MUTE,
     VOLUME_UP,
 #endif  // defined(OS_CHROMEOS)
 };
 
 const size_t kActionsKeepingMenuOpenLength = arraysize(kActionsKeepingMenuOpen);
 
 }  // namespace ash