Move GL one-off initialization code.

ui/gl/init/gl_factory.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/gl/init/gl_factory.h"
 
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_share_group.h"
 #include "ui/gl/gl_surface.h"
 
 namespace gl {
 namespace init {
 
 // TODO(kylechar): This file should be replaced with a platform specific
 // version for X11, Ozone, Windows, Mac and Android. The implementation of each
 // factory function should be moved into that file and the original static
 // methods should be removed from GLSurface and GLContext. This file can then
 // be deleted.
 
-bool InitializeGLOneOff() {
-  return GLSurface::InitializeOneOff();
-}
-
 scoped_refptr<GLContext> CreateGLContext(GLShareGroup* share_group,
                                          GLSurface* compatible_surface,
                                          GpuPreference gpu_preference) {
   return GLContext::CreateGLContext(share_group, compatible_surface,
                                     gpu_preference);
 }
 
 scoped_refptr<GLSurface> CreateViewGLSurface(gfx::AcceleratedWidget window) {
   return GLSurface::CreateViewGLSurface(window);
 }
 
 #if defined(USE_OZONE)
 scoped_refptr<GLSurface> CreateSurfacelessViewGLSurface(
     gfx::AcceleratedWidget window) {
   return GLSurface::CreateSurfacelessViewGLSurface(window);
 }
 #endif  // defined(USE_OZONE)
 
 scoped_refptr<GLSurface> CreateOffscreenGLSurface(const gfx::Size& size) {
   return GLSurface::CreateOffscreenGLSurface(size);
 }
 
 }  // namespace init
 }  // namespace gl