Remove callbacks for SurfaceFactoryOzone::LoadEGLGLES2Bindings().

ui/ozone/platform/x11/x11_surface_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/ozone/platform/x11/x11_surface_factory.h"
 
 #include <X11/Xlib.h>
 
 #include "third_party/khronos/EGL/egl.h"
 #include "ui/gfx/x/x11_types.h"
@@ skipping 129 matching lines @@
     gl::GLImplementation implementation,
     const gfx::Size& size) {
   if (implementation != gl::kGLImplementationEGLGLES2) {
     NOTREACHED();
     return nullptr;
   }
 
   return gl::InitializeGLSurface(new gl::PbufferGLSurfaceEGL(size));
 }
 
-bool X11SurfaceFactory::LoadEGLGLES2Bindings(
-    AddGLLibraryCallback add_gl_library,
-    SetGLGetProcAddressProcCallback set_gl_get_proc_address) {
-  return LoadDefaultEGLGLES2Bindings(add_gl_library, set_gl_get_proc_address);
+bool X11SurfaceFactory::LoadEGLGLES2Bindings() {
+  return LoadDefaultEGLGLES2Bindings();
 }
 
 intptr_t X11SurfaceFactory::GetNativeDisplay() {
   return reinterpret_cast<intptr_t>(gfx::GetXDisplay());
 }
 
 }  // namespace ui