Add modifier flags to MotionEvent

ui/events/gesture_detection/motion_event_generic.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_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_
 #define UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_
 
 #include "base/basictypes.h"
 #include "base/containers/stack_container.h"
 #include "ui/events/gesture_detection/gesture_detection_export.h"
@@ skipping 36 matching lines @@
   virtual float GetX(size_t pointer_index) const OVERRIDE;
   virtual float GetY(size_t pointer_index) const OVERRIDE;
   virtual float GetRawX(size_t pointer_index) const OVERRIDE;
   virtual float GetRawY(size_t pointer_index) const OVERRIDE;
   virtual float GetTouchMajor(size_t pointer_index) const OVERRIDE;
   virtual float GetTouchMinor(size_t pointer_index) const OVERRIDE;
   virtual float GetOrientation(size_t pointer_index) const OVERRIDE;
   virtual float GetPressure(size_t pointer_index) const OVERRIDE;
   virtual ToolType GetToolType(size_t pointer_index) const OVERRIDE;
   virtual int GetButtonState() const OVERRIDE;
+  virtual int GetFlags() const OVERRIDE;
   virtual base::TimeTicks GetEventTime() const OVERRIDE;
   virtual scoped_ptr<MotionEvent> Clone() const OVERRIDE;
   virtual scoped_ptr<MotionEvent> Cancel() const OVERRIDE;
 
   void PushPointer(const PointerProperties& pointer);
 
   void set_action(Action action) { action_ = action; }
   void set_event_time(base::TimeTicks event_time) { event_time_ = event_time; }
   void set_id(int id) { id_ = id; }
   void set_action_index(int action_index) { action_index_ = action_index; }
   void set_button_state(int button_state) { button_state_ = button_state; }
+  void set_flags(int flags) { flags_ = flags; }
 
  protected:
   MotionEventGeneric();
 
   void PopPointer();
 
   PointerProperties& pointer(size_t index) { return pointers_[index]; }
   const PointerProperties& pointer(size_t index) const {
     return pointers_[index];
   }
 
  private:
   enum { kTypicalMaxPointerCount = 5 };
 
   Action action_;
   base::TimeTicks event_time_;
   int id_;
   int action_index_;
   int button_state_;
+  int flags_;
   base::StackVector<PointerProperties, kTypicalMaxPointerCount> pointers_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_