Remove the redundant resource_id setting in CallLoadIcon.

BUG=1006121

Change-Id: I910b73080d08b452f5297813232fdfcdec86f333
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1824048Reviewed-by: Nigel Tao <nigeltao@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Nancy Wang <nancylingwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700583}

chrome/browser/ui/app_list/app_service/app_service_app_icon_loader.cc

@@ -90,9 +90,8 @@ void AppServiceAppIconLoader::CallLoadIcon(const std::string& app_id,
   if (base::StartsWith(app_id, crostini::kCrostiniAppIdPrefix,
                        base::CompareCase::SENSITIVE)) {
     apps::mojom::IconKeyPtr icon_key = apps::mojom::IconKey::New();
-    icon_key->resource_id = apps::mojom::IconKey::kInvalidResourceId;
     proxy->LoadIconFromIconKey(
-        apps::mojom::AppType::kCrostini, app_id, std::move(icon_key),
+        apps::mojom::AppType::kCrostini, std::string(), std::move(icon_key),
         apps::mojom::IconCompression::kUncompressed, icon_size_in_dip(),
         allow_placeholder_icon,
         base::BindOnce(&AppServiceAppIconLoader::OnLoadIcon,