Allow Chrome to bind an Application request from mojo_runner.

ui/views/mus/window_manager_connection.h

Index: ui/views/mus/window_manager_connection.h
diff --git a/ui/views/mus/window_manager_connection.h b/ui/views/mus/window_manager_connection.h
index cb64c8ee885361616b03d3da88cf712c3617d650..b610def4304b6a4c07a0e9cd978df21b24fce7d4 100644
--- a/ui/views/mus/window_manager_connection.h
+++ b/ui/views/mus/window_manager_connection.h
@@ -19,12 +19,6 @@ class UIInit;
 }
 }
 
-namespace views {
-class NativeWidget;
-namespace internal {
-class NativeWidgetDelegate;
-}
-
 // Establishes a connection to the window manager for use by views within an
 // application, and performs Aura initialization.
 class WindowManagerConnection : public mus::WindowTreeDelegate {