[Extensions] Propagate activeTab hosts to extension background pages

extensions/browser/renderer_startup_helper.cc

 // 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.
 
 #include "extensions/browser/renderer_startup_helper.h"
 
 #include "base/values.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
@@ skipping 46 matching lines @@
       process->Send(new ExtensionMsg_SetScriptingWhitelist(
           extensions::ExtensionsClient::Get()->GetScriptingWhitelist()));
 
       // Loaded extensions.
       std::vector<ExtensionMsg_Loaded_Params> loaded_extensions;
       const ExtensionSet& extensions =
           ExtensionRegistry::Get(browser_context_)->enabled_extensions();
       for (ExtensionSet::const_iterator iter = extensions.begin();
            iter != extensions.end(); ++iter) {
         // Renderers don't need to know about themes.
-        if (!(*iter)->is_theme())
-          loaded_extensions.push_back(ExtensionMsg_Loaded_Params(iter->get()));
+        if (!(*iter)->is_theme()) {
+          // Don't need to include tab permissions for new tabs.
+          loaded_extensions.push_back(ExtensionMsg_Loaded_Params(
+              iter->get(), false /* no tab permissions */));
+        }
       }
       process->Send(new ExtensionMsg_Loaded(loaded_extensions));
       break;
     }
     default:
       NOTREACHED();
       break;
   }
 }
 
@@ skipping 29 matching lines @@
     BrowserContext* context) const {
   // Redirected in incognito.
   return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
 }
 
 bool RendererStartupHelperFactory::ServiceIsCreatedWithBrowserContext() const {
   return true;
 }
 
 }  // namespace extensions