Add PlatformWindow/Event related code for Ozone X11.

ui/ozone/platform/x11/x11_surface_factory.h

+// Copyright 2016 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.
+
+#ifndef UI_OZONE_PLATFORM_X11_X11_SURFACE_FACTORY_H_
+#define UI_OZONE_PLATFORM_X11_X11_SURFACE_FACTORY_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/ozone/public/surface_factory_ozone.h"
+
+namespace ui {
+
+// Handles creation of EGL and software surfaces for drawing in XWindow.
+class X11SurfaceFactory : public SurfaceFactoryOzone {
+ public:
+  X11SurfaceFactory();
+  ~X11SurfaceFactory() override;
+
+  // SurfaceFactoryOzone:
+  bool LoadEGLGLES2Bindings(
+      AddGLLibraryCallback add_gl_library,
+      SetGLGetProcAddressProcCallback set_gl_get_proc_address) override;
+
+  intptr_t GetNativeDisplay() override;
+
+  // TODO(kylechar): add EGL and software rendering overrides.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(X11SurfaceFactory);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_X11_X11_SURFACE_FACTORY_H_