DevTools: Introduce module initializers

Source/devtools/front_end/elements/_module.js

Index: Source/devtools/front_end/elements/_module.js
diff --git a/Source/devtools/front_end/elements/_module.js b/Source/devtools/front_end/elements/_module.js
new file mode 100644
index 0000000000000000000000000000000000000000..e0d0bef1443ae681de52005854f2f7abf25d453c
--- /dev/null
+++ b/Source/devtools/front_end/elements/_module.js
@@ -0,0 +1,13 @@
+// Copyright 2014 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.
+
+importScript("Spectrum.js");
+importScript("DOMSyntaxHighlighter.js");
+importScript("ElementsTreeOutline.js");
+importScript("EventListenersSidebarPane.js");
+importScript("MetricsSidebarPane.js");
+importScript("PlatformFontsSidebarPane.js");
+importScript("PropertiesSidebarPane.js");
+importScript("StylesSidebarPane.js");
+importScript("ElementsPanel.js");