Implement GLX for Ozone X11.

ui/ozone/platform/x11/gl_ozone_glx.h

 // 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.
 
-#ifndef UI_OZONE_COMMON_GL_OZONE_EGL_H_
-#define UI_OZONE_COMMON_GL_OZONE_EGL_H_
+#ifndef UI_OZONE_PLATFORM_X11_GL_OZONE_GLX_H_
+#define UI_OZONE_PLATFORM_X11_GL_OZONE_GLX_H_
 
-#include "base/callback.h"
 #include "base/macros.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/ozone/public/gl_ozone.h"
 
 namespace ui {
 
-// A partial implementation of GLOzone for EGL.
-class GLOzoneEGL : public GLOzone {
+class GLOzoneGLX : public GLOzone {
  public:
-  GLOzoneEGL() {}
-  ~GLOzoneEGL() override {}
+  GLOzoneGLX() {}
+  ~GLOzoneGLX() override {}
 
-  // GLOzone:
   bool InitializeGLOneOffPlatform() override;
   bool InitializeStaticGLBindings(gl::GLImplementation implementation) override;
   void InitializeDebugGLBindings() override;
   void ClearGLBindings() override;
   bool GetGLWindowSystemBindingInfo(
       gl::GLWindowSystemBindingInfo* info) override;
   scoped_refptr<gl::GLContext> CreateGLContext(
       gl::GLShareGroup* share_group,
       gl::GLSurface* compatible_surface,
       gl::GpuPreference gpu_preference) override;
   scoped_refptr<gl::GLSurface> CreateViewGLSurface(
-      gfx::AcceleratedWidget window) override = 0;
+      gfx::AcceleratedWidget window) override;
   scoped_refptr<gl::GLSurface> CreateSurfacelessViewGLSurface(
       gfx::AcceleratedWidget window) override;
   scoped_refptr<gl::GLSurface> CreateOffscreenGLSurface(
-      const gfx::Size& size) override = 0;
-
- protected:
-  // Returns native platform display handle. This is used to obtain the EGL
-  // display connection for the native display.
-  virtual intptr_t GetNativeDisplay() = 0;
-
-  // Sets up GL bindings for the native surface.
-  virtual bool LoadGLES2Bindings() = 0;
+      const gfx::Size& size) override;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(GLOzoneEGL);
+  DISALLOW_COPY_AND_ASSIGN(GLOzoneGLX);
 };
 
 }  // namespace ui
 
-#endif  // UI_OZONE_COMMON_GL_OZONE_EGL_H_
+#endif  // UI_OZONE_PLATFORM_X11_GL_OZONE_GLX_H_