X11: Use better visuals for OpenGL

ui/gl/gl_surface_glx.h

Index: ui/gl/gl_surface_glx.h
diff --git a/ui/gl/gl_surface_glx.h b/ui/gl/gl_surface_glx.h
index 29e45e0b03dc7176a2bcfa0355366849275148ff..7f6522ab90c329f8055dd57effd705ca1586afd6 100644
--- a/ui/gl/gl_surface_glx.h
+++ b/ui/gl/gl_surface_glx.h
@@ -72,6 +72,7 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
   void* GetConfig() override;
   gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
   gfx::VSyncProvider* GetVSyncProvider() override;
+  VisualID GetVisualID() const { return visual_id_; }
 
  protected:
   ~NativeViewGLSurfaceGLX() override;
@@ -103,6 +104,7 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
 
   GLXFBConfig config_;
   gfx::Size size_;
+  VisualID visual_id_;
 
   std::unique_ptr<gfx::VSyncProvider> vsync_provider_;