Use a different string and icon for chrome-extension pages in Page Info Bubble.

chrome/browser/ui/cocoa/website_settings/website_settings_bubble_controller.h

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include <memory>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
@@ skipping 63 matching lines @@
 
   // The UI translates user actions to specific events and forwards them to the
   // |presenter_|. The |presenter_| handles these events and updates the UI.
   std::unique_ptr<WebsiteSettings> presenter_;
 
   // Bridge which implements the WebsiteSettingsUI interface and forwards
   // methods on to this class.
   std::unique_ptr<WebsiteSettingsUIBridge> bridge_;
 }
 
+enum BubbleType {
+  WEB_PAGE,        // Bubble for web URLs
+  INTERNAL_PAGE,   // For chrome: URLs
+  EXTENSION_PAGE,  // For chrome-extension: URLs
+};
+
 // Designated initializer. The controller will release itself when the bubble
 // is closed. |parentWindow| cannot be nil. |webContents| may be nil for
 // testing purposes.
 - (id)initWithParentWindow:(NSWindow*)parentWindow
     websiteSettingsUIBridge:(WebsiteSettingsUIBridge*)bridge
                 webContents:(content::WebContents*)webContents
-             isInternalPage:(BOOL)isInternalPage
+                 bubbleType:(BubbleType)bubbleType
          isDevToolsDisabled:(BOOL)isDevToolsDisabled;
 
 // Return the default width of the window. It may be wider to fit the content.
 // This may be overriden by a subclass for testing purposes.
 - (CGFloat)defaultWindowWidth;
 
 @end
 
 // Provides a bridge between the WebSettingsUI C++ interface and the Cocoa
 // implementation in WebsiteSettingsBubbleController.
@@ skipping 33 matching lines @@
 
  private:
   // The WebContents the bubble UI is attached to.
   content::WebContents* web_contents_;
 
   // The Cocoa controller for the bubble UI.
   WebsiteSettingsBubbleController* bubble_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WebsiteSettingsUIBridge);
 };