cros: Add app mode restrictions.

ash/accelerators/accelerator_table.h

Index: ash/accelerators/accelerator_table.h
diff --git a/ash/accelerators/accelerator_table.h b/ash/accelerators/accelerator_table.h
index 4410997e0fe1272257f3ae09928fa317df8aa4fe..f8d99ac8e175dcc9f827701a26a0f93781321151 100644
--- a/ash/accelerators/accelerator_table.h
+++ b/ash/accelerators/accelerator_table.h
@@ -149,6 +149,12 @@ ASH_EXPORT extern const AcceleratorAction kNonrepeatableActions[];
 // The number of elements in kNonrepeatableActions.
 ASH_EXPORT extern const size_t kNonrepeatableActionsLength;
 
+// Actions allowed in app mode.
+ASH_EXPORT extern const AcceleratorAction kActionsAllowedInAppMode[];
+
+// The number of elements in kActionsAllowedInAppMode.
+ASH_EXPORT extern const size_t kActionsAllowedInAppModeLength;
+
 }  // namespace ash
 
 #endif  // ASH_ACCELERATORS_ACCELERATOR_TABLE_H_