First-Party Cookies: Wire it up as an experimental web platform feature

chrome/browser/net/chrome_network_delegate.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/net/chrome_network_delegate.h"
 
 #include <stdlib.h>
 
 #include <vector>
 
 #include "base/base_paths.h"
+#include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/metrics/user_metrics.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_member.h"
 #include "base/prefs/pref_service.h"
@@ skipping 12 matching lines @@
 #include "chrome/browser/net/safe_search_util.h"
 #include "chrome/browser/prerender/prerender_tracker.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/common/pref_names.h"
 #include "components/domain_reliability/monitor.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_request_info.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/process_type.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/cookies/cookie_options.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/io_thread.h"
 #include "components/precache/content/precache_manager.h"
 #include "components/precache/content/precache_manager_factory.h"
 #endif
 
 #if defined(OS_CHROMEOS)
-#include "base/command_line.h"
 #include "base/sys_info.h"
 #include "chrome/common/chrome_switches.h"
 #endif
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
 #include "components/policy/core/browser/url_blacklist_manager.h"
 #endif
 
 #if defined(ENABLE_EXTENSIONS)
 #include "extensions/common/constants.h"
@@ skipping 218 matching lines @@
       force_youtube_safety_mode_(NULL),
 #if defined(ENABLE_CONFIGURATION_POLICY)
       url_blacklist_manager_(NULL),
 #endif
       domain_reliability_monitor_(NULL),
       first_request_(true),
       prerender_tracker_(NULL) {
   DCHECK(enable_referrers);
   extensions_delegate_.reset(
       ChromeExtensionsNetworkDelegate::Create(event_router));
+  experimental_web_platform_features_enabled_ =
+      base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableExperimentalWebPlatformFeatures);

[mmenke, 2015/02/26 16:24:57]

nit:  Can we put this in the initializer list?

 }
 
 ChromeNetworkDelegate::~ChromeNetworkDelegate() {}
 
 void ChromeNetworkDelegate::set_extension_info_map(
     extensions::InfoMap* extension_info_map) {
   extensions_delegate_->set_extension_info_map(extension_info_map);
 }
 
 void ChromeNetworkDelegate::set_profile(void* profile) {
@@ skipping 422 matching lines @@
     return false;
 
   bool reading_cookie_allowed = cookie_settings_->IsReadingCookieAllowed(
       url, first_party_for_cookies);
   bool setting_cookie_allowed = cookie_settings_->IsSettingCookieAllowed(
       url, first_party_for_cookies);
   bool privacy_mode = !(reading_cookie_allowed && setting_cookie_allowed);
   return privacy_mode;
 }
 
+bool ChromeNetworkDelegate::OnFirstPartyOnlyCookieExperimentEnabled() const {
+  return experimental_web_platform_features_enabled_;
+}
+
 bool ChromeNetworkDelegate::OnCancelURLRequestWithPolicyViolatingReferrerHeader(
     const net::URLRequest& request,
     const GURL& target_url,
     const GURL& referrer_url) const {
   ReportInvalidReferrerSend(target_url, referrer_url);
   return true;
 }