Prepending view-source: does not load the source of the userscript.

content/public/renderer/navigation_state.cc

 // Copyright (c) 2011 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 "content/public/renderer/navigation_state.h"
 
 namespace content {
 
 NavigationState::NavigationState(content::PageTransition transition_type,
                                  bool is_content_initiated,
                                  int32 pending_page_id,
                                  int pending_history_list_offset)
     : transition_type_(transition_type),
       request_committed_(false),
       is_content_initiated_(is_content_initiated),
       pending_page_id_(pending_page_id),
       pending_history_list_offset_(pending_history_list_offset),
       was_within_same_page_(false),
       transferred_request_child_id_(-1),
-      transferred_request_request_id_(-1) {
+      transferred_request_request_id_(-1),
+      allow_download_(true) {
 }
 
 NavigationState::~NavigationState() {}
 
 }  // namespace content