Restore DCHECK in zcr_remote_shell

Change-Id: Ic6be666880d54dba30293c6a4142e4a7a3fe43cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1871789
Commit-Queue: Sara Kato <sarakato@chromium.org>
Auto-Submit: Sara Kato <sarakato@chromium.org>
Reviewed-by: Sara Kato <sarakato@chromium.org>
Reviewed-by: Mitsuru Oshima (slow) <oshima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708456}

components/exo/wayland/zcr_remote_shell.cc

@@ -1163,9 +1163,10 @@ void remote_shell_get_remote_surface(wl_client* client,
       base::BindRepeating(&HandleRemoteSurfaceDragFinishedCallback,
                           base::Unretained(remote_surface_resource)));
 
-  DCHECK(wl_resource_get_version(remote_surface_resource) >= 23);
-  shell_surface->set_change_zoom_level_callback(
-      shell->CreateChangeZoomLevelCallback(remote_surface_resource));
+  if (wl_resource_get_version(remote_surface_resource) >= 16) {
+    shell_surface->set_change_zoom_level_callback(
+        shell->CreateChangeZoomLevelCallback(remote_surface_resource));
+  }
 
   SetImplementation(remote_surface_resource, &remote_surface_implementation,
                     std::move(shell_surface));