Fix refresh rate query for internal monitors

ui/gl/gl_surface_ozone.cc

Index: ui/gl/gl_surface_ozone.cc
diff --git a/ui/gl/gl_surface_ozone.cc b/ui/gl/gl_surface_ozone.cc
index 333290f91acbe6006ba3002ceae74627d44bb4fb..67ab131b7a8c261905ca7fe5bc0a5aef855e2adb 100644
--- a/ui/gl/gl_surface_ozone.cc
+++ b/ui/gl/gl_surface_ozone.cc
@@ -123,7 +123,7 @@ class GL_EXPORT GLSurfaceOzoneSurfaceless : public SurfacelessEGL {
   }
   virtual bool SwapBuffers() override {
     // TODO: this should be replaced by a fence when supported by the driver.
-    glFinish();
+    glFlush();
     return ozone_surface_->OnSwapBuffers();
   }
   virtual bool ScheduleOverlayPlane(int z_order,