Show an extension info bubble when a script badge is clicked.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

Index: chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
index e1764bdc413b3c421e5981603e79627a96a191f7..b24d683c9a01a2bc06629a6bcc37267386ed97ab 100644
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -21,6 +21,7 @@
 #include "chrome/browser/ui/webui/devtools_ui.h"
 #include "chrome/browser/ui/webui/downloads_ui.h"
 #include "chrome/browser/ui/webui/extensions/extension_activity_ui.h"
+#include "chrome/browser/ui/webui/extensions/extension_info_ui.h"
 #include "chrome/browser/ui/webui/extensions/extensions_ui.h"
 #include "chrome/browser/ui/webui/feedback_ui.h"
 #include "chrome/browser/ui/webui/flags_ui.h"
@@ -49,6 +50,7 @@
 #include "chrome/browser/ui/webui/uber/uber_ui.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/extension_switch_utils.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/web_contents.h"
@@ -344,6 +346,10 @@ WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
           switches::kEnableExtensionActivityUI)) {
     return &NewWebUI<ExtensionActivityUI>;
   }
+  if (url.host() == chrome::kChromeUIExtensionInfoHost &&
+      extensions::switch_utils::IsActionBoxEnabled()) {
+    return &NewWebUI<ExtensionInfoUI>;
+  }
 
   DLOG(WARNING) << "Unknown WebUI:" << url;
   return NULL;