Allow tab permission to be granted for chrome:// pages through activeTab.

chrome/browser/extensions/active_tab_permission_granter.cc

 // 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.
 
 #include "chrome/browser/extensions/active_tab_permission_granter.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 31 matching lines @@
 
   APIPermissionSet new_apis;
   URLPatternSet new_hosts;
 
   if (extension->HasAPIPermission(APIPermission::kActiveTab)) {
     URLPattern pattern(UserScript::ValidUserScriptSchemes());
     // Pattern parsing could fail if this is an unsupported URL e.g. chrome://.
     if (pattern.Parse(web_contents()->GetURL().spec()) ==
             URLPattern::PARSE_SUCCESS) {
       new_hosts.AddPattern(pattern);
-      new_apis.insert(APIPermission::kTab);
-      granted_extensions_.Insert(extension);
     }
+    new_apis.insert(APIPermission::kTab);
   }
 
   if (extension->HasAPIPermission(APIPermission::kTabCapture))
     new_apis.insert(APIPermission::kTabCaptureForTab);
 
-  if (!new_apis.empty()) {
+  if (!new_apis.empty() || !new_hosts.is_empty()) {
+    granted_extensions_.Insert(extension);
     scoped_refptr<const PermissionSet> new_permissions =
         new PermissionSet(new_apis, new_hosts, URLPatternSet());
     PermissionsData::UpdateTabSpecificPermissions(extension,
                                                   tab_id_,
                                                   new_permissions);
     Send(new ExtensionMsg_UpdateTabSpecificPermissions(GetPageID(),
                                                        tab_id_,
                                                        extension->id(),
                                                        new_hosts));
   }
@@ skipping 39 matching lines @@
 
   Send(new ExtensionMsg_ClearTabSpecificPermissions(tab_id_, extension_ids));
   granted_extensions_.Clear();
 }
 
 int32 ActiveTabPermissionGranter::GetPageID() {
   return web_contents()->GetController().GetVisibleEntry()->GetPageID();
 }
 
 }  // namespace extensions