ozone: evdev: Add libgestures bindings for touchpad & mouse support

ui/events/ozone/evdev/event_modifiers_evdev.h

 // 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.
 
 #ifndef UI_EVENTS_OZONE_EVDEV_EVENT_MODIFIERS_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_EVENT_MODIFIERS_EVDEV_H_
 
 #include "base/basictypes.h"
 #include "ui/events/events_export.h"
 
@@ skipping 35 matching lines @@
 
   // Record key press or release for regular modifier key (shift, alt, etc).
   void UpdateModifier(unsigned int modifier, bool down);
 
   // Record key press or release for locking modifier key (caps lock).
   void UpdateModifierLock(unsigned int modifier, bool down);
 
   // Return current flags to use for incoming events.
   int GetModifierFlags();
 
+  // Return the mask for the specified modifier.
+  static int GetEventFlagFromModifier(unsigned int modifier);
+
  private:
   // Count of keys pressed for each modifier.
   int modifiers_down_[EVDEV_NUM_MODIFIERS];
 
   // Mask of modifier flags currently "locked".
   int modifier_flags_locked_;
 
   // Mask of modifier flags currently active (nonzero keys pressed xor locked).
   int modifier_flags_;
 
   // Update modifier_flags_ from modifiers_down_ and modifier_flags_locked_.
   void UpdateFlags(unsigned int modifier);
 
   DISALLOW_COPY_AND_ASSIGN(EventModifiersEvdev);
 };
 
 }  // namspace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_MODIFIERS_EVDEV_H_