Apply Referrer-Policy header when following redirects

chrome/browser/profiles/profile_io_data.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 "chrome/browser/profiles/profile_io_data.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 62 matching lines @@
 #include "components/policy/core/common/cloud/policy_header_service.h"
 #include "components/policy/core/common/cloud/user_cloud_policy_manager.h"
 #include "components/prefs/pref_service.h"
 #include "components/signin/core/common/signin_pref_names.h"
 #include "components/sync_driver/pref_names.h"
 #include "components/url_formatter/url_fixer.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/resource_context.h"
+#include "content/public/common/content_switches.h"
 #include "net/base/keygen_handler.h"
 #include "net/cert/cert_verifier.h"
 #include "net/cert/ct_log_verifier.h"
 #include "net/cert/multi_log_ct_verifier.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_transaction_factory.h"
 #include "net/http/http_util.h"
 #include "net/http/transport_security_persister.h"
 #include "net/nqe/network_quality_estimator.h"
@@ skipping 929 matching lines @@
   IOThread::Globals* const io_thread_globals = io_thread->globals();
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
   // Create the common request contexts.
   main_request_context_.reset(new net::URLRequestContext());
   extensions_request_context_.reset(new net::URLRequestContext());
 
   main_request_context_->set_enable_brotli(io_thread_globals->enable_brotli);
 
+  // TODO(estark): Remove this once the Referrer-Policy header is no
+  // longer an experimental feature. https://crbug.com/619228
+  main_request_context_->set_enable_referrer_policy_header(
+      command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures));

[jochen (gone - plz use gerrit), 2016/06/27 08:33:40]

how will this work in content shell?

[mmenke, 2016/06/27 18:38:05]

I don't think we normally enable experimental features on content shell, do we? 
When we finally enable it unconditionally, we're remove all the code to
conditionally enable it.  i.e., the bool to enable / disable it will be removed,
so content shell won't need to be updated.

[jochen (gone - plz use gerrit), 2016/06/28 13:03:46]

content_shell is run with both test-only and experimental features enabled for
layout tests

+
   std::unique_ptr<ChromeNetworkDelegate> network_delegate(
       new ChromeNetworkDelegate(
 #if defined(ENABLE_EXTENSIONS)
           io_thread_globals->extension_event_router_forwarder.get(),
 #else
           NULL,
 #endif
           &enable_referrers_, io_thread->GetMetricsDataUseForwarder()));
 #if defined(ENABLE_EXTENSIONS)
   network_delegate->set_extension_info_map(
@@ skipping 313 matching lines @@
 void ProfileIOData::SetCookieSettingsForTesting(
     content_settings::CookieSettings* cookie_settings) {
   DCHECK(!cookie_settings_.get());
   cookie_settings_ = cookie_settings;
 }
 
 policy::URLBlacklist::URLBlacklistState ProfileIOData::GetURLBlacklistState(
     const GURL& url) const {
   return url_blacklist_manager_->GetURLBlacklistState(url);
 }