Deprecate Shift+Alt to switch IME and use Ctrl+Shift+Space instead.

ash/accelerators/accelerator_table.h

 // 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.
 
 #ifndef ASH_ACCELERATORS_ACCELERATOR_TABLE_H_
 #define ASH_ACCELERATORS_ACCELERATOR_TABLE_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "ui/events/event_constants.h"
@@ skipping 136 matching lines @@
 
 struct AcceleratorData {
   bool trigger_on_press;
   ui::KeyboardCode keycode;
   int modifiers;
   AcceleratorAction action;
 };
 
 // Gathers the needed data to handle deprecated accelerators.
 struct DeprecatedAcceleratorData {
-  // The old deprecated accelerator.
-  AcceleratorData deprecated_accelerator;
+  // The action that has deprecated accelerators.
+  AcceleratorAction action;
 
   // The name of the UMA histogram that will be used to measure the deprecated
   // v.s. new accelerator usage.
   const char* uma_histogram_name;
 
   // The ID of the localized notification message to show to users informing
   // them about the deprecation.
   int notification_message_id;
 
+  // The ID of the localized old deprecated shortcut key.
+  int old_shortcut_id;
+
+  // The ID of the localized new shortcut key.
+  int new_shortcut_id;
+
   // Specifies whether the deprecated accelerator is still enabled to do its
   // associated action.
   bool deprecated_enabled;
 };
 
 // This will be used for the UMA stats to measure the how many users are using
 // the old v.s. new accelerators.
 enum DeprecatedAcceleratorUsage {
   DEPRECATED_USED = 0,     // The deprecated accelerator is used.
   NEW_USED,                // The new accelerator is used.
   DEPRECATED_USAGE_COUNT,  // Maximum value of this enum for histogram use.
 };
 
 // Accelerators handled by AcceleratorController.
 ASH_EXPORT extern const AcceleratorData kAcceleratorData[];
 ASH_EXPORT extern const size_t kAcceleratorDataLength;
 
 #if defined(OS_CHROMEOS)
-// The list of the deprecated accelerators along with their new replacing ones
-// and how to handle them.
-ASH_EXPORT extern const DeprecatedAcceleratorData kDeprecatedAccelerators[];
+// The list of the deprecated accelerators.
+ASH_EXPORT extern const AcceleratorData kDeprecatedAccelerators[];
 ASH_EXPORT extern const size_t kDeprecatedAcceleratorsLength;
+
+// The list of the actions with deprecated accelerators and the needed data to
+// handle them.
+ASH_EXPORT extern const DeprecatedAcceleratorData kDeprecatedAcceleratorsData[];
+ASH_EXPORT extern const size_t kDeprecatedAcceleratorsDataLength;
 #endif  // defined(OS_CHROMEOS)
 
 // Debug accelerators. Debug accelerators are only enabled when the "Debugging
 // keyboard shortcuts" flag (--ash-debug-shortcuts) is enabled. Debug actions
 // are always run (similar to reserved actions).
 ASH_EXPORT extern const AcceleratorData kDebugAcceleratorData[];
 ASH_EXPORT extern const size_t kDebugAcceleratorDataLength;
 
 // Actions that should be handled very early in Ash unless the current target
 // window is full-screen.
@@ skipping 29 matching lines @@
 ASH_EXPORT extern const AcceleratorAction kActionsNeedingWindow[];
 ASH_EXPORT extern const size_t kActionsNeedingWindowLength;
 
 // Actions that can be performed while keeping the menu open.
 ASH_EXPORT extern const AcceleratorAction kActionsKeepingMenuOpen[];
 ASH_EXPORT extern const size_t kActionsKeepingMenuOpenLength;
 
 }  // namespace ash
 
 #endif  // ASH_ACCELERATORS_ACCELERATOR_TABLE_H_