Add modifier flags to MotionEvent

ui/events/gesture_detection/motion_event_buffer.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 "ui/events/gesture_detection/motion_event_buffer.h"
 
 #include "base/debug/trace_event.h"
 #include "ui/events/gesture_detection/motion_event.h"
 #include "ui/events/gesture_detection/motion_event_generic.h"
 
@@ skipping 213 matching lines @@
   }
 
   virtual ToolType GetToolType(size_t pointer_index) const OVERRIDE {
     return latest().GetToolType(pointer_index);
   }
 
   virtual int GetButtonState() const OVERRIDE {
     return latest().GetButtonState();
   }
 
+  virtual int GetFlags() const OVERRIDE { return latest().GetFlags(); }
+
   virtual base::TimeTicks GetEventTime() const OVERRIDE {
     return latest().GetEventTime();
   }
 
   virtual size_t GetHistorySize() const OVERRIDE { return events_.size() - 1; }
 
   virtual base::TimeTicks GetHistoricalEventTime(
       size_t historical_index) const OVERRIDE {
     DCHECK_LT(historical_index, GetHistorySize());
     return events_[historical_index]->GetEventTime();
@@ skipping 209 matching lines @@
     events.weak_clear();
     client_->ForwardMotionEvent(*event);
     return;
   }
 
   CompoundMotionEvent compound_event(events.Pass());
   client_->ForwardMotionEvent(compound_event);
 }
 
 }  // namespace ui