Convert Ozone GL OSMesa implementation.

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/gfx/native_pixmap.h"
 #include "ui/ozone/public/surface_ozone_canvas.h"
 
 namespace ui {
 
 SurfaceFactoryOzone::SurfaceFactoryOzone() {}
 
 SurfaceFactoryOzone::~SurfaceFactoryOzone() {}
 
 std::vector<gl::GLImplementation>
 SurfaceFactoryOzone::GetAllowedGLImplementations() {
-  return std::vector<gl::GLImplementation>{gl::kGLImplementationOSMesaGL};
+  return std::vector<gl::GLImplementation>();
 }
 
 GLOzone* SurfaceFactoryOzone::GetGLOzone(gl::GLImplementation implementation) {
   return nullptr;
 }
 
 std::unique_ptr<SurfaceOzoneCanvas> SurfaceFactoryOzone::CreateCanvasForWidget(
     gfx::AcceleratedWidget widget) {
   return nullptr;
 }
@@ skipping 14 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