--- a/.eslintignore
+++ b/.eslintignore
@@ -93,17 +93,16 @@ devtools/client/shared/*.jsm
 devtools/client/shared/components/reps/reps.js
 devtools/client/shared/webgl-utils.js
 devtools/client/shared/widgets/*.jsm
 devtools/client/webaudioeditor/**
 devtools/client/webconsole/net/**
 devtools/client/webconsole/test/**
 devtools/client/webconsole/console-output.js
 devtools/client/webconsole/hudservice.js
-devtools/client/webconsole/utils.js
 devtools/client/webconsole/webconsole-connection-proxy.js
 devtools/client/webconsole/webconsole.js
 devtools/client/webide/**
 !devtools/client/webide/components/webideCli.js
 devtools/server/actors/webconsole.js
 devtools/server/actors/object.js
 devtools/server/actors/script.js
 devtools/server/actors/styleeditor.js

--- a/devtools/client/webconsole/utils.js
+++ b/devtools/client/webconsole/utils.js
@@ -1,32 +1,32 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft= javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 "use strict";
 
-const {Cc, Ci, Cu, components} = require("chrome");
+const {Cc, Ci} = require("chrome");
 const Services = require("Services");
 const {LocalizationHelper} = require("devtools/shared/l10n");
 
 // Match the function name from the result of toString() or toSource().
 //
 // Examples:
 // (function foobar(a, b) { ...
 // function foobar2(a) { ...
 // function() { ...
 const REGEX_MATCH_FUNCTION_NAME = /^\(?function\s+([^(\s]+)\s*\(/;
 
 // Number of terminal entries for the self-xss prevention to go away
 const CONSOLE_ENTRY_THRESHOLD = 5;
 
-const CONSOLE_WORKER_IDS = exports.CONSOLE_WORKER_IDS = [
+exports.CONSOLE_WORKER_IDS = [
   "SharedWorker",
   "ServiceWorker",
   "Worker"
 ];
 
 var WebConsoleUtils = {
 
   /**
@@ -99,62 +99,16 @@ var WebConsoleUtils = {
     let style = win.getComputedStyle(from);
     to.style.fontFamily = style.getPropertyCSSValue("font-family").cssText;
     to.style.fontSize = style.getPropertyCSSValue("font-size").cssText;
     to.style.fontWeight = style.getPropertyCSSValue("font-weight").cssText;
     to.style.fontStyle = style.getPropertyCSSValue("font-style").cssText;
   },
 
   /**
-   * Create a grip for the given value. If the value is an object,
-   * an object wrapper will be created.
-   *
-   * @param mixed value
-   *        The value you want to create a grip for, before sending it to the
-   *        client.
-   * @param function objectWrapper
-   *        If the value is an object then the objectWrapper function is
-   *        invoked to give us an object grip. See this.getObjectGrip().
-   * @return mixed
-   *         The value grip.
-   */
-  createValueGrip: function (value, objectWrapper) {
-    switch (typeof value) {
-      case "boolean":
-        return value;
-      case "string":
-        return objectWrapper(value);
-      case "number":
-        if (value === Infinity) {
-          return { type: "Infinity" };
-        } else if (value === -Infinity) {
-          return { type: "-Infinity" };
-        } else if (Number.isNaN(value)) {
-          return { type: "NaN" };
-        } else if (!value && 1 / value === -Infinity) {
-          return { type: "-0" };
-        }
-        return value;
-      case "undefined":
-        return { type: "undefined" };
-      case "object":
-        if (value === null) {
-          return { type: "null" };
-        }
-        // Fall through.
-      case "function":
-        return objectWrapper(value);
-      default:
-        console.error("Failed to provide a grip for value of " + typeof value
-                      + ": " + value);
-        return null;
-    }
-  },
-
-  /**
    * Determine if the given request mixes HTTP with HTTPS content.
    *
    * @param string request
    *        Location of the requested content.
    * @param string location
    *        Location of the current page.
    * @return boolean
    *         True if the content is mixed, false if not.