Add new InputDeviceManager interface.

ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.cc

 // Copyright 2014 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/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.h"
 
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 
 #include <memory>
@@ skipping 80 matching lines @@
           device_data_manager->DisableDevice(touchpad_device_id_);
           Shell::GetInstance()->cursor_manager()->HideCursor();
         }
       } else if (device_name == kCoreKeyboardName) {
         core_keyboard_device_id_ = xi_dev_list[i].deviceid;
         device_data_manager->DisableDevice(core_keyboard_device_id_);
       }
     }
 
     for (const ui::InputDevice& device :
-         device_data_manager->keyboard_devices()) {
+         device_data_manager->GetKeyboardDevices()) {
       if (device.type == ui::InputDeviceType::INPUT_DEVICE_INTERNAL) {
         keyboard_device_id_ = device.id;
         device_data_manager->DisableDevice(keyboard_device_id_);
         break;
       }
     }
   }
   // Allow the accessible keys present on the side of some devices to continue
   // working.
   std::unique_ptr<std::set<ui::KeyboardCode>> excepted_keys(
@@ skipping 47 matching lines @@
     // blocked. Move the mouse cursor back to its last known location resulting
     // from an external mouse to prevent the internal touchpad from moving it.
     SetMouseLocationInScreen(last_mouse_location_);
   } else {
     // Track the last location seen from an external mouse event.
     last_mouse_location_ = GetMouseLocationInScreen();
   }
 }
 
 }  // namespace ash