Refactor context creation parameters into a struct.

ui/ozone/platform/x11/gl_ozone_glx.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_GL_OZONE_GLX_H_
 #define UI_OZONE_PLATFORM_X11_GL_OZONE_GLX_H_
 
 #include "base/macros.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/ozone/public/gl_ozone.h"
 
 namespace ui {
 
 class GLOzoneGLX : public GLOzone {
  public:
   GLOzoneGLX() {}
   ~GLOzoneGLX() override {}
 
   bool InitializeGLOneOffPlatform() override;
   bool InitializeStaticGLBindings(gl::GLImplementation implementation) override;
   void InitializeDebugGLBindings() override;
   void ClearGLBindings() override;
   bool GetGLWindowSystemBindingInfo(
       gl::GLWindowSystemBindingInfo* info) override;
   scoped_refptr<gl::GLContext> CreateGLContext(
       gl::GLShareGroup* share_group,
       gl::GLSurface* compatible_surface,
-      gl::GpuPreference gpu_preference) override;
+      const gl::GLContextAttribs& attribs) override;
   scoped_refptr<gl::GLSurface> CreateViewGLSurface(
       gfx::AcceleratedWidget window) override;
   scoped_refptr<gl::GLSurface> CreateSurfacelessViewGLSurface(
       gfx::AcceleratedWidget window) override;
   scoped_refptr<gl::GLSurface> CreateOffscreenGLSurface(
       const gfx::Size& size) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GLOzoneGLX);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_X11_GL_OZONE_GLX_H_