Display extension options in a WebUI overlay instead of in a new tab

chrome/browser/resources/extensions/extensions.js

Index: chrome/browser/resources/extensions/extensions.js
diff --git a/chrome/browser/resources/extensions/extensions.js b/chrome/browser/resources/extensions/extensions.js
index e678099970f4f6060fe2797a9e1d0c8022b1bb63..fa8d7f02ddc0c11cfdd3664505d1ed3f52cf1ffa 100644
--- a/chrome/browser/resources/extensions/extensions.js
+++ b/chrome/browser/resources/extensions/extensions.js
@@ -10,6 +10,7 @@
 <include src="pack_extension_overlay.js">
 <include src="extension_error_overlay.js">
 <include src="extension_loader.js">
+<include src="extension_options_overlay.js">
 
 <if expr="chromeos">
 <include src="chromeos/kiosk_apps.js">
@@ -153,6 +154,9 @@ cr.define('extensions', function() {
       extensions.ExtensionErrorOverlay.getInstance().initializePage(
           extensions.ExtensionSettings.showOverlay);
 
+      extensions.ExtensionOptionsOverlay.getInstance().initializePage(
+          extensions.ExtensionSettings.showOverlay);
+
       // Initialize the kiosk overlay.
       if (cr.isChromeOS) {
         var kioskOverlay = extensions.KioskAppsOverlay.getInstance();