Remove callbacks for SurfaceFactoryOzone::LoadEGLGLES2Bindings().

ui/ozone/platform/cast/surface_factory_cast.h

 // Copyright 2015 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_CAST_SURFACE_FACTORY_CAST_H_
 #define UI_OZONE_PLATFORM_CAST_SURFACE_FACTORY_CAST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 26 matching lines @@
       gl::GLImplementation implementation,
       const gfx::Size& size) override;
   std::unique_ptr<SurfaceOzoneCanvas> CreateCanvasForWidget(
       gfx::AcceleratedWidget widget) override;
   intptr_t GetNativeDisplay() override;
   scoped_refptr<NativePixmap> CreateNativePixmap(
       gfx::AcceleratedWidget widget,
       gfx::Size size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage) override;
-  bool LoadEGLGLES2Bindings(
-      AddGLLibraryCallback add_gl_library,
-      SetGLGetProcAddressProcCallback set_gl_get_proc_address) override;
+  bool LoadEGLGLES2Bindings() override;
 
   intptr_t GetNativeWindow();
   bool ResizeDisplay(gfx::Size viewport_size);
   void ChildDestroyed();
   void TerminateDisplay();
   void ShutdownHardware();
 
   // API for keeping track of overlays per frame for logging purposes
   void OnSwapBuffers();
   void OnOverlayScheduled(const gfx::Rect& display_bounds);
@@ skipping 18 matching lines @@
   gfx::Rect overlay_bounds_;
   int previous_frame_overlay_count_;
   gfx::Rect previous_frame_overlay_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceFactoryCast);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_CAST_SURFACE_FACTORY_CAST_H_