rename from devtools/client/responsivedesign/responsivedesign-child.js
rename to devtools/client/responsive.html/browser/content.js

--- a/devtools/client/responsive.html/browser/moz.build
+++ b/devtools/client/responsive.html/browser/moz.build
@@ -1,11 +1,12 @@
 # -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
 # vim: set filetype=python:
 # 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/.
 
 DevToolsModules(
+    'content.js',
     'swap.js',
     'tunnel.js',
     'web-navigation.js',
 )

--- a/devtools/client/responsive.html/components/browser.js
+++ b/devtools/client/responsive.html/components/browser.js
@@ -10,16 +10,18 @@ const { Task } = require("devtools/share
 const flags = require("devtools/shared/flags");
 const { getToplevelWindow } = require("../utils/window");
 const { DOM: dom, createClass, addons, PropTypes } =
   require("devtools/client/shared/vendor/react");
 
 const e10s = require("../utils/e10s");
 const message = require("../utils/message");
 
+const FRAME_SCRIPT = "resource://devtools/client/responsive.html/browser/content.js";
+
 module.exports = createClass({
 
   /**
    * This component is not allowed to depend directly on frequently changing
    * data (width, height) due to the use of `dangerouslySetInnerHTML` below.
    * Any changes in props will cause the <iframe> to be removed and added again,
    * throwing away the current state of the page.
    */
@@ -78,18 +80,17 @@ module.exports = createClass({
 
     // Notify tests when the content has received a resize event.  This is not
     // quite the same timing as when we _set_ a new size around the browser,
     // since it still needs to do async work before the content is actually
     // resized to match.
     e10s.on(mm, "OnContentResize", onContentResize);
 
     let ready = e10s.once(mm, "ChildScriptReady");
-    mm.loadFrameScript("resource://devtools/client/responsivedesign/" +
-                       "responsivedesign-child.js", true);
+    mm.loadFrameScript(FRAME_SCRIPT, true);
     yield ready;
 
     let browserWindow = getToplevelWindow(window);
     let requiresFloatingScrollbars =
       !browserWindow.matchMedia("(-moz-overlay-scrollbars)").matches;
 
     yield e10s.request(mm, "Start", {
       requiresFloatingScrollbars,

--- a/devtools/client/responsive.html/utils/e10s.js
+++ b/devtools/client/responsive.html/utils/e10s.js
@@ -1,16 +1,16 @@
 /* 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";
 
 // The prefix used for RDM messages in content.
-// see: devtools/client/responsivedesign/responsivedesign-child.js
+// see: devtools/client/responsive.html/browser/content.js
 const MESSAGE_PREFIX = "ResponsiveMode:";
 const REQUEST_DONE_SUFFIX = ":Done";
 
 /**
  * Registers a message `listener` that is called every time messages of
  * specified `message` is emitted on the given message manager.
  * @param {nsIMessageListenerManager} mm
  *    The Message Manager

--- a/devtools/client/responsivedesign/moz.build
+++ b/devtools/client/responsivedesign/moz.build
@@ -1,15 +1,14 @@
 # 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/.
 
 BROWSER_CHROME_MANIFESTS += ['test/browser.ini']
 
 DevToolsModules(
     'resize-commands.js',
-    'responsivedesign-child.js',
     'responsivedesign-old.js',
     'responsivedesign.js',
 )
 
-with Files('**'):
-    BUG_COMPONENT = ('Firefox', 'Developer Tools: Responsive Design Mode')
+with Files('**'):
+    BUG_COMPONENT = ('Firefox', 'Developer Tools: Responsive Design Mode')

--- a/devtools/client/responsivedesign/responsivedesign-old.js
+++ b/devtools/client/responsivedesign/responsivedesign-old.js
@@ -204,17 +204,17 @@ ResponsiveUI.prototype = {
     } else if (!value) {
       this.stack.setAttribute("notransition", "true");
     }
   },
 
   init: Task.async(function* () {
     debug("INIT BEGINS");
     let ready = this.waitForMessage("ResponsiveMode:ChildScriptReady");
-    this.mm.loadFrameScript("resource://devtools/client/responsivedesign/responsivedesign-child.js", true);
+    this.mm.loadFrameScript("resource://devtools/client/responsive.html/browser/content.js", true);
     yield ready;
 
     yield gDevToolsBrowser.loadBrowserStyleSheet(this.mainWindow);
 
     let requiresFloatingScrollbars =
       !this.mainWindow.matchMedia("(-moz-overlay-scrollbars)").matches;
     let started = this.waitForMessage("ResponsiveMode:Start:Done");
     debug("SEND START");