X11: Use better visuals for OpenGL

ui/gl/gl_surface.cc

Index: ui/gl/gl_surface.cc
diff --git a/ui/gl/gl_surface.cc b/ui/gl/gl_surface.cc
index a457ea32a579a1fee52786d2010bc49be72800fe..7fcb093c9f6434d524d5f4d41f9b90f87c68b546 100644
--- a/ui/gl/gl_surface.cc
+++ b/ui/gl/gl_surface.cc
@@ -130,6 +130,10 @@ void* GLSurface::GetConfig() {
   return NULL;
 }
 
+unsigned long GLSurface::GetCompatibilityKey() {
+  return 0;
+}
+
 GLSurface::Format GLSurface::GetFormat() {
   NOTIMPLEMENTED();
   return SURFACE_DEFAULT;
@@ -320,6 +324,10 @@ void* GLSurfaceAdapter::GetConfig() {
   return surface_->GetConfig();
 }
 
+unsigned long GLSurfaceAdapter::GetCompatibilityKey() {
+  return surface_->GetCompatibilityKey();
+}
+
 GLSurface::Format GLSurfaceAdapter::GetFormat() {
   return surface_->GetFormat();
 }