[wip] ozonex: X11 backend for ozone.

ui/events/platform/x11/x11_event_source_libevent.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/platform/x11/x11_event_source.h"
 
 #include <X11/Xlib.h>
 
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_pump_libevent.h"
@@ skipping 42 matching lines @@
   }
 
   base::MessagePumpLibevent::FileDescriptorWatcher watcher_controller_;
   bool initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(X11EventSourceLibevent);
 };
 
 }  // namespace
 
-scoped_ptr<PlatformEventSource> PlatformEventSource::CreateDefault() {
+scoped_ptr<PlatformEventSource> CreateX11LibeventSource() {
   return scoped_ptr<PlatformEventSource>(
       new X11EventSourceLibevent(gfx::GetXDisplay()));
 }
 
+scoped_ptr<PlatformEventSource> PlatformEventSource::CreateDefault() {
+  return CreateX11LibeventSource();
+}
+
 }  // namespace ui