Make the toggle touchscreen/touchpad shortcuts apply per-user

chrome/browser/chromeos/system/input_device_settings.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 CHROME_BROWSER_CHROMEOS_SYSTEM_INPUT_DEVICE_SETTINGS_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_INPUT_DEVICE_SETTINGS_H_
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "chromeos/chromeos_export.h"
@@ skipping 156 matching lines @@
 
   virtual ~InputDeviceSettings() {}
 
   // Returns current instance of InputDeviceSettings.
   static InputDeviceSettings* Get();
 
   // Returns true if UI should implement enhanced keyboard support for cases
   // where other input devices like mouse are absent.
   static bool ForceKeyboardDrivenUINavigation();
 
-  // Registers local pref names for touchpad and touch screen statuses.
-  static void RegisterPrefs(PrefRegistrySimple* registry);
+  // Registers profile pref names for touchpad and touch screen statuses.
+  static void RegisterProfilePrefs(PrefRegistrySimple* registry);
 
-  void InitTouchDevicesStatusFromLocalPrefs();
+  // Updates the on/off status of the touchscreen/touchpad from the active
+  // user's preferences.
+  void UpdateTouchDevicesStatusFromActiveProfilePrefs();
 
   // Toggles the status of Touchscreen/Touchpad on or off and updates the local
   // prefs.
   void ToggleTouchscreen();
   void ToggleTouchpad();
 
   // Calls |callback|, possibly asynchronously, after determining if a touchpad
   // is connected.
   virtual void TouchpadExists(const DeviceExistsCallback& callback) = 0;
 
@@ skipping 45 matching lines @@
 
  private:
   virtual void SetInternalTouchpadEnabled(bool enabled) {}
   virtual void SetTouchscreensEnabled(bool enabled) {}
 };
 
 }  // namespace system
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_INPUT_DEVICE_SETTINGS_H_