Apply Referrer-Policy header when following redirects

content/shell/browser/shell_url_request_context_getter.cc

 // Copyright 2013 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/shell/browser/shell_url_request_context_getter.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 96 matching lines @@
                                                            file_task_runner_);
 }
 
 std::unique_ptr<net::ProxyService>
 ShellURLRequestContextGetter::GetProxyService() {
   // TODO(jam): use v8 if possible, look at chrome code.
   return net::ProxyService::CreateUsingSystemProxyResolver(
       std::move(proxy_config_service_), 0, url_request_context_->net_log());
 }
 
+bool ShellURLRequestContextGetter::ShouldEnableReferrerPolicyHeader() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableExperimentalWebPlatformFeatures);
+}
+
 net::URLRequestContext* ShellURLRequestContextGetter::GetURLRequestContext() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (!url_request_context_) {
     const base::CommandLine& command_line =
         *base::CommandLine::ForCurrentProcess();
 
     url_request_context_.reset(new net::URLRequestContext());
     url_request_context_->set_net_log(net_log_);
     network_delegate_ = CreateNetworkDelegate();
     url_request_context_->set_network_delegate(network_delegate_.get());
+    // TODO(estark): Remove this once the Referrer-Policy header is no
+    // longer an experimental feature. https://crbug.com/619228
+    url_request_context_->set_enable_referrer_policy_header(
+        ShouldEnableReferrerPolicyHeader());
     storage_.reset(
         new net::URLRequestContextStorage(url_request_context_.get()));
     storage_->set_cookie_store(CreateCookieStore(CookieStoreConfig()));
     storage_->set_channel_id_service(base::WrapUnique(
         new net::ChannelIDService(new net::DefaultChannelIDStore(NULL),
                                   base::WorkerPool::GetTaskRunner(true))));
     storage_->set_http_user_agent_settings(base::WrapUnique(
         new net::StaticHttpUserAgentSettings("en-us,en", GetShellUserAgent())));
 
     std::unique_ptr<net::HostResolver> host_resolver(
@@ skipping 120 matching lines @@
 scoped_refptr<base::SingleThreadTaskRunner>
     ShellURLRequestContextGetter::GetNetworkTaskRunner() const {
   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
 }
 
 net::HostResolver* ShellURLRequestContextGetter::host_resolver() {
   return url_request_context_->host_resolver();
 }
 
 }  // namespace content