Files app: Add flag FilesJsModules to JS

Bug: 1133186
Change-Id: I9a26f72fc24f4fe49c160120ebca3f4cf22f0ce3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2636005
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Commit-Queue: Jeremie Boulic <jboulic@chromium.org>
Auto-Submit: Luciano Pacheco <lucmult@chromium.org>
Reviewed-by: Jeremie Boulic <jboulic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844629}

chrome/browser/chromeos/file_manager/file_manager_string_util.cc

@@ -1061,6 +1061,9 @@ void AddFileManagerFeatureStrings(const std::string& locale,
   dict->SetBoolean("FILES_SINGLE_PARTITION_FORMAT_ENABLED",
                    base::FeatureList::IsEnabled(
                        chromeos::features::kFilesSinglePartitionFormat));
+  dict->SetBoolean(
+      "FILES_JS_MODULES_ENABLED",
+      base::FeatureList::IsEnabled(chromeos::features::kFilesJsModules));
   dict->SetBoolean(
       "AUDIO_PLAYER_JS_MODULES_ENABLED",
       base::FeatureList::IsEnabled(chromeos::features::kAudioPlayerJsModules));

ui/file_manager/file_manager/common/js/util.js

@@ -1491,6 +1491,14 @@ util.isSinglePartitionFormatEnabled = () => {
   return loadTimeData.getBoolean('FILES_SINGLE_PARTITION_FORMAT_ENABLED');
 };
 
+/**
+ * Returns true if  flag is enabled.
+ * @return {boolean}
+ */
+util.isFilesJsModulesEnabled = () => {
+  return loadTimeData.getBoolean('FILES_JS_MODULES_ENABLED');
+};
+
 /**
  * Returns true if  flag is enabled.
  * @return {boolean}