Add a NavigationThrottle to the public content/ interface

content/browser/loader/navigation_url_loader_impl_core.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_core.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/time/time.h"
 #include "content/browser/frame_host/navigation_request_info.h"
@@ skipping 40 matching lines @@
       *request_info, this);
 }
 
 void NavigationURLLoaderImplCore::FollowRedirect() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (resource_handler_)
     resource_handler_->FollowRedirect();
 }
 
-
 void NavigationURLLoaderImplCore::NotifyRequestRedirected(
     const net::RedirectInfo& redirect_info,
-    ResourceResponse* response) {
+    ResourceResponse* response,
+    bool is_external_protocol) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   // Make a copy of the ResourceResponse before it is passed to another thread.
   //
   // TODO(davidben): This copy could be avoided if ResourceResponse weren't
   // reference counted and the loader stack passed unique ownership of the
   // response. https://crbug.com/416050
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&NavigationURLLoaderImpl::NotifyRequestRedirected, loader_,
-                 redirect_info, response->DeepCopy()));
+                 redirect_info, response->DeepCopy(), is_external_protocol));
 }
 
 void NavigationURLLoaderImplCore::NotifyResponseStarted(
     ResourceResponse* response,
     scoped_ptr<StreamHandle> body) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   // If, by the time the task reaches the UI thread, |loader_| has already been
   // destroyed, NotifyResponseStarted will not run. |body| will be destructed
   // and the request released at that point.
@@ skipping 13 matching lines @@
                                                       int net_error) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&NavigationURLLoaderImpl::NotifyRequestFailed, loader_,
                  in_cache, net_error));
 }
 
 }  // namespace content