Support touch scroll gestures in menus.

views/controls/menu/menu_host_root_view.cc

Index: views/controls/menu/menu_host_root_view.cc
diff --git a/views/controls/menu/menu_host_root_view.cc b/views/controls/menu/menu_host_root_view.cc
index b3676fa017d2c73ff4f40d19b23cff5c6b6438a3..a01a061d7364bcd79566a16c3d1dfd787775f01f 100644
--- a/views/controls/menu/menu_host_root_view.cc
+++ b/views/controls/menu/menu_host_root_view.cc
@@ -62,6 +62,19 @@ bool MenuHostRootView::OnMouseWheel(const MouseWheelEvent& event) {
 #endif
 }
 
+ui::GestureStatus MenuHostRootView::OnGestureEvent(const GestureEvent& event) {
+#if defined(OS_LINUX)
+  // ChromeOS uses MenuController to forward events like other
+  // mouse events.
+  if (!GetMenuController())
+    return ui::GESTURE_STATUS_UNKNOWN;
+  return GetMenuController()->OnGestureEvent(submenu_, event);
+#else
+  // TODO(vollick): gestures in Windows.

[rjkroege, 2012/01/19 16:15:08]

you need to hook up with cpu about this I think

+  return RootView::OnGestureEvent(event);
+#endif
+}
+
 MenuController* MenuHostRootView::GetMenuController() {
   return submenu_ ? submenu_->GetMenuItem()->GetMenuController() : NULL;
 }