Add key based scrolling on magnified screen for kiosk mode.

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 114 matching lines @@
   VOLUME_UP,
   WINDOW_MINIMIZE,
   WINDOW_POSITION_CENTER,
   WINDOW_SNAP_LEFT,
   WINDOW_SNAP_RIGHT,
 #if defined(OS_CHROMEOS)
   ADD_REMOVE_DISPLAY,
   TOGGLE_MIRROR_MODE,
   DISABLE_GPU_WATCHDOG,
   LOCK_SCREEN,
+  MAGNIFY_SCREEN_UP,
+  MAGNIFY_SCREEN_DOWN,
+  MAGNIFY_SCREEN_LEFT,
+  MAGNIFY_SCREEN_RIGHT,
+  MAGNIFY_SCREEN_STOP_SCROLL,
   OPEN_CROSH,
   OPEN_FILE_MANAGER,
   SWITCH_TO_NEXT_USER,
   SWITCH_TO_PREVIOUS_USER,
 #endif
 };
 
 struct AcceleratorData {
   bool trigger_on_press;
   ui::KeyboardCode keycode;
@@ skipping 45 matching lines @@
 ASH_EXPORT extern const size_t kNonrepeatableActionsLength;
 
 // Actions allowed in app mode.
 ASH_EXPORT extern const AcceleratorAction kActionsAllowedInAppMode[];
 ASH_EXPORT extern const size_t kActionsAllowedInAppModeLength;
 
 // Actions that require at least 1 window.
 ASH_EXPORT extern const AcceleratorAction kActionsNeedingWindow[];
 ASH_EXPORT extern const size_t kActionsNeedingWindowLength;
 
+#if defined(OS_CHROMEOS)
+// Accelerators that are enabled only when magnifier is enabled.
+ASH_EXPORT extern const AcceleratorData kMagnifierAcceleratorData[];
+ASH_EXPORT extern const size_t kMagnifierAcceleratorDataLength;
+#endif
+
 }  // namespace ash
 
 #endif  // ASH_ACCELERATORS_ACCELERATOR_TABLE_H_