DevTools: Changes Drawer

third_party/WebKit/Source/devtools/front_end/common/CharacterIdMap.js

 // Copyright 2016 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.
 /**
  * @template T
  * @unrestricted
  */
 Common.CharacterIdMap = class {
   constructor() {
     /** @type {!Map<T, string>} */
@@ skipping 17 matching lines @@
       this._characterToElement.set(character, object);
     }
     return character;
   }
 
   /**
    * @param {string} character
    * @return {?T}
    */
   fromChar(character) {
-    return this._characterToElement.get(character) || null;
+    return this._characterToElement.get(character);
   }
 };