Implement the "first-party-only" cookie flag.

chrome/browser/chromeos/login/profile_auth_data_unittest.cc

Index: chrome/browser/chromeos/login/profile_auth_data_unittest.cc
diff --git a/chrome/browser/chromeos/login/profile_auth_data_unittest.cc b/chrome/browser/chromeos/login/profile_auth_data_unittest.cc
index 6d7d88a29df6f0be3b50b4424f15a43dd76924e9..bf6bc33ce360ee8774f235c5a1d247e962cc2218 100644
--- a/chrome/browser/chromeos/login/profile_auth_data_unittest.cc
+++ b/chrome/browser/chromeos/login/profile_auth_data_unittest.cc
@@ -223,28 +223,14 @@ void ProfileAuthDataTest::PopulateBrowserContext(
   run_loop_->Run();
 
   net::CookieList cookie_list;
-  cookie_list.push_back(net::CanonicalCookie(GURL(kGAIACookieURL),
-                                             kCookieName,
-                                             cookie_value,
-                                             kGAIACookieDomain,
-                                             std::string(),
-                                             base::Time(),
-                                             base::Time(),
-                                             base::Time(),
-                                             true,
-                                             false,
-                                             net::COOKIE_PRIORITY_DEFAULT));
-  cookie_list.push_back(net::CanonicalCookie(GURL(kSAMLIdPCookieURL),
-                                             kCookieName,
-                                             cookie_value,
-                                             kSAMLIdPCookieDomain,
-                                             std::string(),
-                                             base::Time(),
-                                             base::Time(),
-                                             base::Time(),
-                                             true,
-                                             false,
-                                             net::COOKIE_PRIORITY_DEFAULT));
+  cookie_list.push_back(net::CanonicalCookie(
+      GURL(kGAIACookieURL), kCookieName, cookie_value, kGAIACookieDomain,
+      std::string(), base::Time(), base::Time(), base::Time(), true, false,
+      false, net::COOKIE_PRIORITY_DEFAULT));
+  cookie_list.push_back(net::CanonicalCookie(
+      GURL(kSAMLIdPCookieURL), kCookieName, cookie_value, kSAMLIdPCookieDomain,
+      std::string(), base::Time(), base::Time(), base::Time(), true, false,
+      false, net::COOKIE_PRIORITY_DEFAULT));
   cookies->ImportCookies(cookie_list);
 
   GetChannelIDs(browser_context)->SetChannelID(kChannelIDServerIdentifier,