Remove dead script_badge code.

chrome/browser/ui/cocoa/extensions/extension_popup_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/extensions/extension_popup_controller.h"
 
 #include <algorithm>
 
 #include "base/callback.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 267 matching lines @@
                              devMode:(BOOL)devMode {
   DCHECK([NSThread isMainThread]);
   DCHECK(browser);
   if (!browser)
     return nil;
 
   // If we click the browser/page action again, we should close the popup.
   // Make Mac behavior the same with Windows and others.
   if (gPopup) {
     std::string extension_id = url.host();
-    if (url.SchemeIs(content::kChromeUIScheme) &&
-        url.host() == chrome::kChromeUIExtensionInfoHost)
-      extension_id = url.path().substr(1);
     extensions::ExtensionViewHost* host = [gPopup extensionViewHost];
     if (extension_id == host->extension_id()) {
       [gPopup close];
       return nil;
     }
   }
 
   extensions::ExtensionViewHost* host =
       extensions::ExtensionViewHostFactory::CreatePopupHost(url, browser);
   DCHECK(host);
@@ skipping 134 matching lines @@
   return minSize;
 }
 
 // Private (TestingAPI)
 + (NSSize)maxPopupSize {
   NSSize maxSize = {ExtensionViewMac::kMaxWidth, ExtensionViewMac::kMaxHeight};
   return maxSize;
 }
 
 @end