Revert of Enable 'First-Party-Only' cookies by default.

chrome/browser/net/chrome_network_delegate.cc

Index: chrome/browser/net/chrome_network_delegate.cc
diff --git a/chrome/browser/net/chrome_network_delegate.cc b/chrome/browser/net/chrome_network_delegate.cc
index 7f87867c5c002e5f0cac4aad3d659700f0036d8b..fbc7d30fbd5646d9553c13933cb4abf187d1b185 100644
--- a/chrome/browser/net/chrome_network_delegate.cc
+++ b/chrome/browser/net/chrome_network_delegate.cc
@@ -9,6 +9,7 @@
 #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"
@@ -38,6 +39,7 @@
 #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"
@@ -57,7 +59,6 @@
 #endif
 
 #if defined(OS_CHROMEOS)
-#include "base/command_line.h"
 #include "base/sys_info.h"
 #include "chrome/common/chrome_switches.h"
 #endif
@@ -291,6 +292,9 @@
       url_blacklist_manager_(NULL),
 #endif
       domain_reliability_monitor_(NULL),
+      experimental_web_platform_features_enabled_(
+          base::CommandLine::ForCurrentProcess()->HasSwitch(
+              switches::kEnableExperimentalWebPlatformFeatures)),
       first_request_(true) {
   DCHECK(enable_referrers);
   extensions_delegate_.reset(
@@ -701,6 +705,10 @@
   return privacy_mode;
 }
 
+bool ChromeNetworkDelegate::OnFirstPartyOnlyCookieExperimentEnabled() const {
+  return experimental_web_platform_features_enabled_;
+}
+
 bool ChromeNetworkDelegate::OnCancelURLRequestWithPolicyViolatingReferrerHeader(
     const net::URLRequest& request,
     const GURL& target_url,