Remove callbacks for SurfaceFactoryOzone::LoadEGLGLES2Bindings().

ui/ozone/platform/drm/gpu/gbm_surface_factory.cc

 // Copyright 2014 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/drm/gpu/gbm_surface_factory.h"
 
 #include <gbm.h>
 
 #include <utility>
 
@@ skipping 85 matching lines @@
   DCHECK_EQ(size.height(), 0);
 
   return gl::InitializeGLSurface(new gl::SurfacelessEGL(size));
 }
 
 intptr_t GbmSurfaceFactory::GetNativeDisplay() {
   DCHECK(thread_checker_.CalledOnValidThread());
   return EGL_DEFAULT_DISPLAY;
 }
 
-bool GbmSurfaceFactory::LoadEGLGLES2Bindings(
-    AddGLLibraryCallback add_gl_library,
-    SetGLGetProcAddressProcCallback set_gl_get_proc_address) {
+bool GbmSurfaceFactory::LoadEGLGLES2Bindings() {
   DCHECK(thread_checker_.CalledOnValidThread());
-  return LoadDefaultEGLGLES2Bindings(add_gl_library, set_gl_get_proc_address);
+  return LoadDefaultEGLGLES2Bindings();
 }
 
 std::unique_ptr<SurfaceOzoneCanvas> GbmSurfaceFactory::CreateCanvasForWidget(
     gfx::AcceleratedWidget widget) {
   DCHECK(thread_checker_.CalledOnValidThread());
   LOG(ERROR) << "Software rendering mode is not supported with GBM platform";
   return nullptr;
 }
 
 std::vector<gfx::BufferFormat> GbmSurfaceFactory::GetScanoutFormats(
@@ skipping 44 matching lines @@
   }
 
   scoped_refptr<GbmBuffer> buffer = drm_thread_->CreateBufferFromFds(
       widget, size, format, std::move(scoped_fds), planes);
   if (!buffer)
     return nullptr;
   return make_scoped_refptr(new GbmPixmap(this, buffer));
 }
 
 }  // namespace ui