diff --git a/devtools/server/actors/child-process.js b/devtools/server/actors/child-process.js
index cbbcc62dcd8d..521487c6736f 100644
--- a/devtools/server/actors/child-process.js
+++ b/devtools/server/actors/child-process.js
@@ -6,7 +6,7 @@
 
 const { Cc, Ci, Cu } = require("chrome");
 
-const { ChromeDebuggerActor } = require("devtools/server/actors/chrome-debugger");
+const { ChromeDebuggerActor } = require("devtools/server/actors/script");
 const { WebConsoleActor } = require("devtools/server/actors/webconsole");
 const makeDebugger = require("devtools/server/actors/utils/make-debugger");
 const { ActorPool } = require("devtools/server/main");
@@ -75,7 +75,7 @@ ChildProcessActor.prototype = {
     }
 
     if (!this.threadActor) {
-      this.threadActor = new ChromeDebuggerActor(this);
+      this.threadActor = new ChromeDebuggerActor(this.conn, this);
       this._contextPool.addActor(this.threadActor);
     }
 
diff --git a/devtools/server/actors/chrome-debugger.js b/devtools/server/actors/chrome-debugger.js
deleted file mode 100644
index 7dadd19d7c78..000000000000
--- a/devtools/server/actors/chrome-debugger.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2; 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 { ActorClass } = require("devtools/server/protocol");
-const { ThreadActor } = require("devtools/server/actors/script");
-
-/**
- * ChromeDebuggerActor is a thin wrapper over ThreadActor, slightly changing
- * some of its behavior.
- */
-let ChromeDebuggerActor = ActorClass({
-  typeName: "chromeDebugger",
-  extends: ThreadActor,
-
-  /**
-   * Create the actor.
-   *
-   * @param parent object
-   *        This actor's parent actor. See ThreadActor for a list of expected
-   *        properties.
-   */
-  initialize: function(parent) {
-    ThreadActor.call(this, parent);
-  }
-});
-
-exports.ChromeDebuggerActor = ChromeDebuggerActor;
diff --git a/devtools/server/actors/moz.build b/devtools/server/actors/moz.build
index 2fe0642e013c..f544b7bb0f47 100644
--- a/devtools/server/actors/moz.build
+++ b/devtools/server/actors/moz.build
@@ -17,7 +17,6 @@ DevToolsModules(
     'canvas.js',
     'child-process.js',
     'childtab.js',
-    'chrome-debugger.js',
     'chrome.js',
     'common.js',
     'csscoverage.js',
diff --git a/devtools/server/actors/script.js b/devtools/server/actors/script.js
index d55221031e3b..5493db527b99 100644
--- a/devtools/server/actors/script.js
+++ b/devtools/server/actors/script.js
@@ -3394,6 +3394,36 @@ function hackDebugger(Debugger) {
   });
 }
 
+
+/**
+ * Creates an actor for handling chrome debugging. ChromeDebuggerActor is a
+ * thin wrapper over ThreadActor, slightly changing some of its behavior.
+ *
+ * @param aConnection object
+ *        The DebuggerServerConnection with which this ChromeDebuggerActor
+ *        is associated. (Currently unused, but required to make this
+ *        constructor usable with addGlobalActor.)
+ *
+ * @param aParent object
+ *        This actor's parent actor. See ThreadActor for a list of expected
+ *        properties.
+ */
+function ChromeDebuggerActor(aConnection, aParent)
+{
+  ThreadActor.call(this, aParent);
+}
+
+ChromeDebuggerActor.prototype = Object.create(ThreadActor.prototype);
+
+update(ChromeDebuggerActor.prototype, {
+  constructor: ChromeDebuggerActor,
+
+  // A constant prefix that will be used to form the actor ID by the server.
+  actorPrefix: "chromeDebugger"
+});
+
+exports.ChromeDebuggerActor = ChromeDebuggerActor;
+
 /**
  * Creates an actor for handling add-on debugging. AddonThreadActor is
  * a thin wrapper over ThreadActor.