Enable use_once_callback on mojom GN rule by default

chrome/common/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/util/process_version.gni")
 import("//chrome/common/features.gni")
 import("//chrome/process_version_rc_template.gni")  # For branding_file_path.
 import("//extensions/features/features.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
@@ skipping 708 matching lines @@
   if (safe_browsing_mode == 1) {
     sources += [ "safe_archive_analyzer.mojom" ]
   }
 
   public_deps = [
     "//components/content_settings/core/common:mojo_bindings",
     "//mojo/common:common_custom_types",
     "//ui/gfx/geometry/mojo",
     "//url/mojo:url_mojom_gurl",
   ]
+
+  # TODO(crbug.com/714018): Convert the implementation to use OnceCallback.
+  use_once_callback = false
 }
 
 mojom("instant_mojom") {
   sources = [
     "instant.mojom",
   ]
 
   public_deps = [
     "//mojo/common:common_custom_types",
     "//url/mojo:url_mojom_gurl",
   ]
 }