Converts some uses of native_view to native_window. This is necessitated...

views/controls/menu/menu_host_gtk.cc

Index: views/controls/menu/menu_host_gtk.cc
===================================================================
--- views/controls/menu/menu_host_gtk.cc	(revision 28706)
+++ views/controls/menu/menu_host_gtk.cc	(working copy)
@@ -30,11 +30,11 @@
   }
 }
 
-void MenuHost::Init(gfx::NativeView parent,
+void MenuHost::Init(gfx::NativeWindow parent,
                     const gfx::Rect& bounds,
                     View* contents_view,
                     bool do_capture) {
-  WidgetGtk::Init(parent, bounds);
+  WidgetGtk::Init(GTK_WIDGET(parent), bounds);
   SetContentsView(contents_view);
   // TODO(sky): see if there is some way to show without changing focus.
   Show();
@@ -65,6 +65,10 @@
   }
 }
 
+gfx::NativeWindow MenuHost::GetNativeWindow() {
+  return GTK_WINDOW(GetNativeView());
+}
+
 void MenuHost::Show() {
   WidgetGtk::Show();
 }