Run any pending injections in ActiveScriptController if permission is granted

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/extensions/active_script_controller.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/permissions/permission_set.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/common/user_script.h"
 #include "url/gurl.h"
@@ skipping 59 matching lines @@
                                                   tab_id_,
                                                   new_permissions);
     const content::NavigationEntry* navigation_entry =
         web_contents()->GetController().GetVisibleEntry();
     if (navigation_entry) {
       Send(new ExtensionMsg_UpdateTabSpecificPermissions(
           navigation_entry->GetPageID(),
           tab_id_,
           extension->id(),
           new_hosts));
+      // If more things ever need to know about this, we should consider making
+      // an observer class.
+      // It's important that this comes after the IPC is sent to the renderer,
+      // so that any tasks executing in the renderer occur after it has the
+      // updated permissions.
+      ActiveScriptController::GetForWebContents(web_contents())
+          ->OnActiveTabPermissionGranted(extension);
     }
   }
 }
 
 void ActiveTabPermissionGranter::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   if (details.is_in_page)
     return;
   DCHECK(details.is_main_frame);  // important: sub-frames don't get granted!
@@ skipping 23 matching lines @@
        it != granted_extensions_.end(); ++it) {
     PermissionsData::ClearTabSpecificPermissions(it->get(), tab_id_);
     extension_ids.push_back((*it)->id());
   }
 
   Send(new ExtensionMsg_ClearTabSpecificPermissions(tab_id_, extension_ids));
   granted_extensions_.Clear();
 }
 
 }  // namespace extensions