Initial views touchui GestureRecognizer support

views/widget/native_widget_delegate.h

Index: views/widget/native_widget_delegate.h
diff --git a/views/widget/native_widget_delegate.h b/views/widget/native_widget_delegate.h
index b02cf5206d4be9bc8d5a930362071662e839b802..ba20e9bc313ec4380d5b4ca20748a3f0b07c2916 100644
--- a/views/widget/native_widget_delegate.h
+++ b/views/widget/native_widget_delegate.h
@@ -16,6 +16,7 @@ class Size;
 #if defined(TOUCH_UI)
 namespace ui {
 enum TouchStatus;
+enum GestureStatus;
 }
 #endif
 
@@ -97,6 +98,7 @@ class VIEWS_EXPORT NativeWidgetDelegate {
   virtual bool OnMouseEvent(const MouseEvent& event) = 0;
   virtual void OnMouseCaptureLost() = 0;
   virtual ui::TouchStatus OnTouchEvent(const TouchEvent& event) = 0;
+  virtual ui::GestureStatus OnGestureEvent(const GestureEvent& event) = 0;
 
   // Runs the specified native command. Returns true if the command is handled.
   virtual bool ExecuteCommand(int command_id) = 0;