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

net/base/network_delegate_impl.h

 // Copyright 2014 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.
 
 #ifndef NET_BASE_NETWORK_DELEGATE_IMPL_H_
 #define NET_BASE_NETWORK_DELEGATE_IMPL_H_
 
 #include "base/strings/string16.h"
 #include "net/base/completion_callback.h"
 #include "net/base/network_delegate.h"
@@ skipping 166 matching lines @@
   // request is overloaded or down.
   bool OnCanThrottleRequest(const URLRequest& request) const override;
 
   // Returns true if the given |url| has to be requested over connection that
   // is not tracked by the server. Usually is false, unless user privacy
   // settings block cookies from being get or set.
   bool OnCanEnablePrivacyMode(
       const GURL& url,
       const GURL& first_party_for_cookies) const override;
 
-  // Returns true if the embedder has enabled the "first-party" cookie
-  // experiment, and false otherwise.
-  //
-  // TODO(mkwst): Remove this once we decide whether or not we wish to ship
-  // first-party cookies. https://crbug.com/459154
-  bool OnFirstPartyOnlyCookieExperimentEnabled() const override;
-
   // Called when the |referrer_url| for requesting |target_url| during handling
   // of the |request| is does not comply with the referrer policy (e.g. a
   // secure referrer for an insecure initial target).
   // Returns true if the request should be cancelled. Otherwise, the referrer
   // header is stripped from the request.
   bool OnCancelURLRequestWithPolicyViolatingReferrerHeader(
       const URLRequest& request,
       const GURL& target_url,
       const GURL& referrer_url) const override;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_NETWORK_DELEGATE_IMPL_H_