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

chrome/browser/extensions/location_bar_controller.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_LOCATION_BAR_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_LOCATION_BAR_CONTROLLER_H_
 #pragma once
 
 #include <set>
 #include <string>
 #include <vector>
 
 class ExtensionAction;
 
 namespace extensions {
 
 // Interface for a class that controls the the extension icons that show up in
 // the location bar. Depending on switches, these icons can have differing
 // behavior.
 class LocationBarController {
  public:
   // The reaction that the UI should take after executing |OnClicked|.
   enum Action {
     ACTION_NONE,
     ACTION_SHOW_POPUP,
     ACTION_SHOW_CONTEXT_MENU,
+    ACTION_SHOW_SCRIPT_POPUP,
   };
 
   virtual ~LocationBarController() {}
 
   // Utility to add any actions to |out| which aren't present in |actions|.
   static void AddMissingActions(
       const std::set<ExtensionAction*>& actions,
       std::vector<ExtensionAction*>* out);
 
   // Gets the action data for all extensions.
   virtual std::vector<ExtensionAction*> GetCurrentActions() = 0;
 
   // Notifies this that the badge for an extension has been clicked with some
   // mouse button (1 for left, 2 for middle, and 3 for right click), and
   // returns the action that should be taken in response (if any).
   // TODO(kalman): make mouse_button an enum.
   virtual Action OnClicked(const std::string& extension_id,
                            int mouse_button) = 0;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_LOCATION_BAR_CONTROLLER_H_