Initial views touchui GestureRecognizer support

views/events/event.h

Index: views/events/event.h
diff --git a/views/events/event.h b/views/events/event.h
index a7b3620b08c92ae3fe470e467892fc988b23db67..226ac0044d08bdcbee1e018d5060e52574e5ea81 100644
--- a/views/events/event.h
+++ b/views/events/event.h
@@ -109,6 +109,7 @@ class VIEWS_EXPORT Event {
   }
 
   void set_type(ui::EventType type) { type_ = type; }
+  void set_time_stamp(base::Time time_stamp) { time_stamp_ = time_stamp; }
 
  private:
   void operator=(const Event&);
@@ -434,6 +435,34 @@ class VIEWS_EXPORT DropTargetEvent : public LocatedEvent {
   DISALLOW_COPY_AND_ASSIGN(DropTargetEvent);
 };
 
+////////////////////////////////////////////////////////////////////////////////
+// GestureEvent class
+//
+////////////////////////////////////////////////////////////////////////////////
+class VIEWS_EXPORT GestureEvent : public LocatedEvent {
+ public:
+  GestureEvent(ui::EventType type, int x, int y, int flags,
+               base::Time time_stamp, float delta_x, float delta_y);
+
+  // Create a new GestureEvent which is identical to the provided model.
+  // If source / target views are provided, the model location will be converted
+  // from |source| coordinate system to |target| coordinate system.
+  GestureEvent(const GestureEvent& model, View* source, View* target);
+
+  float delta_x() const { return delta_x_; }
+  float delta_y() const { return delta_y_; }
+
+ private:
+  friend class internal::RootView;
+
+  GestureEvent(const GestureEvent& model, View* root);
+
+  float delta_x_;
+  float delta_y_;
+
+  DISALLOW_COPY_AND_ASSIGN(GestureEvent);
+};
+
 }  // namespace views
 
 #endif  // VIEWS_EVENTS_EVENT_H_