NavigationThrottle: allow customization of net::Error when blocking

extensions/browser/extension_navigation_throttle.cc

 // Copyright 2016 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/extension_navigation_throttle.h"
 
 #include "components/guest_view/browser/guest_view_base.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
@@ skipping 175 matching lines @@
 }
 
 content::NavigationThrottle::ThrottleCheckResult
 ExtensionNavigationThrottle::WillStartRequest() {
   return WillStartOrRedirectRequest();
 }
 
 content::NavigationThrottle::ThrottleCheckResult
 ExtensionNavigationThrottle::WillRedirectRequest() {
   ThrottleCheckResult result = WillStartOrRedirectRequest();
-  if (result == BLOCK_REQUEST) {
+  if (result.action() == BLOCK_REQUEST) {
     // BLOCK_REQUEST is on redirect does not work without PlzNavigate, so
     // translate these errors into CANCEL.
     return CANCEL;
   }
   return result;
 }
 
 const char* ExtensionNavigationThrottle::GetNameForLogging() {
   return "ExtensionNavigationThrottle";
 }
 
 }  // namespace extensions