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

net/url_request/url_request_test_util.h

Index: net/url_request/url_request_test_util.h
diff --git a/net/url_request/url_request_test_util.h b/net/url_request/url_request_test_util.h
index 9ad66a14aa1727f1ed9d33089be1882ff23570f0..0208b4392fcf3fb0789828333d636f9e3fb85ef4 100644
--- a/net/url_request/url_request_test_util.h
+++ b/net/url_request/url_request_test_util.h
@@ -264,6 +264,10 @@
 
   void set_can_access_files(bool val) { can_access_files_ = val; }
   bool can_access_files() const { return can_access_files_; }
+
+  void set_first_party_only_cookies_enabled(bool val) {
+    first_party_only_cookies_enabled_ = val;
+  }
 
   void set_can_throttle_requests(bool val) { can_throttle_requests_ = val; }
   bool can_throttle_requests() const { return can_throttle_requests_; }
@@ -325,6 +329,7 @@
   bool OnCanAccessFile(const URLRequest& request,
                        const base::FilePath& path) const override;
   bool OnCanThrottleRequest(const URLRequest& request) const override;
+  bool OnFirstPartyOnlyCookieExperimentEnabled() const override;
   bool OnCancelURLRequestWithPolicyViolatingReferrerHeader(
       const URLRequest& request,
       const GURL& target_url,
@@ -370,6 +375,7 @@
 
   bool can_access_files_;  // true by default
   bool can_throttle_requests_;  // true by default
+  bool first_party_only_cookies_enabled_;               // false by default
   bool cancel_request_with_policy_violating_referrer_;  // false by default
   bool will_be_intercepted_on_next_error_;
 };