Change queryId of launcherSearchProvider API to integer.

ui/file_manager/file_manager/background/js/launcher_search.js

Index: ui/file_manager/file_manager/background/js/launcher_search.js
diff --git a/ui/file_manager/file_manager/background/js/launcher_search.js b/ui/file_manager/file_manager/background/js/launcher_search.js
index d64fe25f00fdc8a8bbe549347a9a179cda0b3e8c..7806f9b7fd9698e8c5fb9d0a6b25503a24cdcfaf 100644
--- a/ui/file_manager/file_manager/background/js/launcher_search.js
+++ b/ui/file_manager/file_manager/background/js/launcher_search.js
@@ -14,7 +14,7 @@ function LauncherSearch() {
 
   /**
    * Active query id. This value is set null when there is no active query.
-   * @private {?string}
+   * @private {?number}
    */
   this.queryId_ = null;
 
@@ -25,12 +25,12 @@ function LauncherSearch() {
   this.enabled_ = false;
 
   /**
-   * @private {function(string, string, number)}
+   * @private {function(number, string, number)}
    */
   this.onQueryStartedBound_ = this.onQueryStarted_.bind(this);
 
   /**
-   * @private {function(string)}
+   * @private {function(number)}
    */
   this.onQueryEndedBound_ = this.onQueryEnded_.bind(this);
 
@@ -98,7 +98,7 @@ LauncherSearch.prototype.initializeEventListeners_ = function(isDriveEnabled) {
 
 /**
  * Handles onQueryStarted event.
- * @param {string} queryId
+ * @param {number} queryId
  * @param {string} query
  * @param {number} limit
  */
@@ -141,7 +141,7 @@ LauncherSearch.prototype.onQueryStarted_ = function(queryId, query, limit) {
 
 /**
  * Handles onQueryEnded event.
- * @param {string} queryId
+ * @param {number} queryId
  */
 LauncherSearch.prototype.onQueryEnded_ = function(queryId) {
   this.queryId_ = null;