Add a NavigationThrottle to the public content/ interface

content/browser/loader/navigation_url_loader_impl.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 "content/browser/loader/navigation_url_loader_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "content/browser/frame_host/navigation_request_info.h"
 #include "content/browser/loader/navigation_url_loader_delegate.h"
@@ skipping 32 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&NavigationURLLoaderImplCore::FollowRedirect,
                  base::Unretained(core_)));
 }
 
 void NavigationURLLoaderImpl::NotifyRequestRedirected(
     const net::RedirectInfo& redirect_info,
-    const scoped_refptr<ResourceResponse>& response) {
+    const scoped_refptr<ResourceResponse>& response,
+    bool is_external_protocol) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  delegate_->OnRequestRedirected(redirect_info, response);
+  delegate_->OnRequestRedirected(redirect_info, response, is_external_protocol);
 }
 
 void NavigationURLLoaderImpl::NotifyResponseStarted(
     const scoped_refptr<ResourceResponse>& response,
     scoped_ptr<StreamHandle> body) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   delegate_->OnResponseStarted(response, body.Pass());
 }
 
 void NavigationURLLoaderImpl::NotifyRequestFailed(bool in_cache,
                                                   int net_error) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   delegate_->OnRequestFailed(in_cache, net_error);
 }
 
 void NavigationURLLoaderImpl::NotifyRequestStarted(base::TimeTicks timestamp) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   delegate_->OnRequestStarted(timestamp);
 }
 
 }  // namespace content