Update extension install prompt to reflect withheld permissions

chrome/browser/extensions/permissions_updater.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/permissions_updater.h"
 
 #include "base/json/json_writer.h"
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 146 matching lines @@
   if (!Manifest::IsUnpackedLocation(extension->location()) &&
       extension->location() != Manifest::INTERNAL)
     return;
 
   ExtensionPrefs::Get(browser_context_)->AddGrantedPermissions(
       extension->id(),
       extension->permissions_data()->active_permissions().get());
 }
 
 void PermissionsUpdater::InitializePermissions(const Extension* extension) {
-  scoped_refptr<const PermissionSet> active_permissions =
-      ExtensionPrefs::Get(browser_context_)
-          ->GetActivePermissions(extension->id());
-  scoped_refptr<const PermissionSet> bounded_active =
-      GetBoundedActivePermissions(extension, active_permissions);
+  InitializePermissions(extension, INIT_FLAG_NONE);
+}
+
+void PermissionsUpdater::InitializePermissions(const Extension* extension,
+                                               InitFlag init_flag) {
+  scoped_refptr<const PermissionSet> active_permissions(NULL);
+  scoped_refptr<const PermissionSet> bounded_active(NULL);
+  // If |extension| is a transient dummy extension, we do not want to look for
+  // it in preferences.
+  if (init_flag & INIT_FLAG_TRANSIENT) {
+    bounded_active = active_permissions =
+        extension->permissions_data()->active_permissions();
+  } else {
+    active_permissions = ExtensionPrefs::Get(browser_context_)
+                             ->GetActivePermissions(extension->id());
+    bounded_active = GetBoundedActivePermissions(extension, active_permissions);
+  }
 
   // Withhold permissions only if the switch applies to this extension and the
   // extension doesn't have the preference to allow scripting on all urls.
   bool should_withhold_permissions =
       util::ScriptsMayRequireActionForExtension(extension) &&
       !util::AllowedScriptingOnAllUrls(extension->id(), browser_context_);
 
   URLPatternSet granted_explicit_hosts;
   URLPatternSet withheld_explicit_hosts;
   SegregateUrlPermissions(bounded_active->explicit_hosts(),
@@ skipping 168 matching lines @@
             Profile::FromBrowserContext(host->GetBrowserContext()))) {
       host->Send(new ExtensionMsg_UpdatePermissions(params));
     }
   }
 
   // Trigger the onAdded and onRemoved events in the extension.
   DispatchEvent(extension->id(), event_name, changed);
 }
 
 }  // namespace extensions