Refactor context creation parameters into a struct.

ui/ozone/platform/x11/gl_ozone_glx.cc

 // 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.
 
 #include "ui/ozone/platform/x11/gl_ozone_glx.h"
 
 #include "base/command_line.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_context_glx.h"
 #include "ui/gl/gl_gl_api_implementation.h"
@@ skipping 67 matching lines @@
 }
 
 bool GLOzoneGLX::GetGLWindowSystemBindingInfo(
     gl::GLWindowSystemBindingInfo* info) {
   return gl::GetGLWindowSystemBindingInfoGLX(info);
 }
 
 scoped_refptr<gl::GLContext> GLOzoneGLX::CreateGLContext(
     gl::GLShareGroup* share_group,
     gl::GLSurface* compatible_surface,
-    gl::GpuPreference gpu_preference) {
+    const gl::GLContextAttribs& attribs) {
   return gl::InitializeGLContext(new gl::GLContextGLX(share_group),
-                                 compatible_surface, gpu_preference);
+                                 compatible_surface, attribs);
 }
 
 scoped_refptr<gl::GLSurface> GLOzoneGLX::CreateViewGLSurface(
     gfx::AcceleratedWidget window) {
   return gl::InitializeGLSurface(new GLSurfaceGLXOzone(window));
 }
 
 scoped_refptr<gl::GLSurface> GLOzoneGLX::CreateSurfacelessViewGLSurface(
     gfx::AcceleratedWidget window) {
   return nullptr;
 }
 
 scoped_refptr<gl::GLSurface> GLOzoneGLX::CreateOffscreenGLSurface(
     const gfx::Size& size) {
   return gl::InitializeGLSurface(new gl::UnmappedNativeViewGLSurfaceGLX(size));
 }
 
 }  // namespace ui