Add OzoneGLImpl interface.

ui/ozone/public/surface_factory_ozone.cc

 // Copyright (c) 2013 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/ozone/public/surface_factory_ozone.h"
 
 #include <stdlib.h>
 
 #include "base/command_line.h"
 #include "ui/ozone/public/native_pixmap.h"
 #include "ui/ozone/public/surface_ozone_canvas.h"
 
 namespace ui {
 
 SurfaceFactoryOzone::SurfaceFactoryOzone() {}
 
 SurfaceFactoryOzone::~SurfaceFactoryOzone() {}
 
+std::vector<gl::GLImplementation>
+SurfaceFactoryOzone::GetAllowedGLImplementations() {
+  std::vector<gl::GLImplementation> impls;
+  // TODO(kylechar): Remove EGL from this list once every Ozone platform that
+  // uses EGL overrides this method.
+  impls.push_back(gl::kGLImplementationEGLGLES2);
+  impls.push_back(gl::kGLImplementationOSMesaGL);
+  return impls;
+}
+
+GLOzone* SurfaceFactoryOzone::GetGLOzone(gl::GLImplementation implemenation) {
+  return nullptr;
+}
+
 intptr_t SurfaceFactoryOzone::GetNativeDisplay() {
   return 0;
 }
 
 scoped_refptr<gl::GLSurface> SurfaceFactoryOzone::CreateViewGLSurface(
     gl::GLImplementation implementation,
     gfx::AcceleratedWidget widget) {
   return nullptr;
 }
 
@@ skipping 35 matching lines @@
 scoped_refptr<ui::NativePixmap>
 SurfaceFactoryOzone::CreateNativePixmapFromHandle(
     gfx::AcceleratedWidget widget,
     gfx::Size size,
     gfx::BufferFormat format,
     const gfx::NativePixmapHandle& handle) {
   return nullptr;
 }
 
 }  // namespace ui