Fix for "chrome://" links in PDFs.

content/public/common/url_constants.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 "content/public/common/url_constants.h"
 
 namespace content {
 
 // Before adding new chrome schemes please check with security@chromium.org.
 // There are security implications associated with introducing new schemes.
@@ skipping 37 matching lines @@
 const char kChromeUIPpapiFlashCrashURL[] = "chrome://ppapiflashcrash";
 const char kChromeUIPpapiFlashHangURL[] = "chrome://ppapiflashhang";
 const char kChromeUIServiceWorkerInternalsURL[] =
     "chrome://serviceworker-internals";
 
 // This error URL is loaded in normal web renderer processes, so it should not
 // have a chrome:// scheme that might let it be confused with a WebUI page.
 const char kUnreachableWebDataURL[] = "data:text/html,chromewebdata";
 
 const char kChromeUINetworkViewCacheURL[] = "chrome://view-http-cache/";
+const char kChromeUIResourcesURL[] = "chrome://resources/";
 const char kChromeUIShorthangURL[] = "chrome://shorthang";
 
 // This URL is loaded when a page is swapped out and replaced by a page in a
 // different renderer process.  It must have a unique origin that cannot be
 // scripted by other pages in the process.
 const char kSwappedOutURL[] = "swappedout://";
 
 }  // namespace content