[ios] Removed CookieStoreIOS::set_flush_delay_for_testing.

ios/net/cookies/cookie_store_ios.mm

 // Copyright 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 "ios/net/cookies/cookie_store_ios.h"
 
 #import <Foundation/Foundation.h>
 #include <stddef.h>
 
 #include "base/bind.h"
@@ skipping 687 matching lines @@
 #pragma mark -
 #pragma mark Private methods
 
 CookieStoreIOS::CookieStoreIOS(
     net::CookieMonster::PersistentCookieStore* persistent_store,
     NSHTTPCookieStorage* system_store)
     : cookie_monster_(new net::CookieMonster(persistent_store, nullptr)),
       system_store_(system_store),
       creation_time_manager_(new CookieCreationTimeManager),
       metrics_enabled_(false),
-      flush_delay_(base::TimeDelta::FromSeconds(10)),
       synchronization_state_(NOT_SYNCHRONIZED),
       cookie_cache_(new CookieCache()),
       weak_factory_(this) {
   DCHECK(system_store);
 
   NotificationTrampoline::GetInstance()->AddObserver(this);
 
   cookie_monster_->SetPersistSessionCookies(true);
   cookie_monster_->SetForceKeepSessionState();
 }
@@ skipping 83 matching lines @@
     }
   }
 
   // Do not schedule a flush if one is already scheduled.
   if (!flush_closure_.IsCancelled())
     return;
 
   flush_closure_.Reset(base::Bind(&CookieStoreIOS::FlushStore,
                                   weak_factory_.GetWeakPtr(), base::Closure()));
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
-      FROM_HERE, flush_closure_.callback(), flush_delay_);
+      FROM_HERE, flush_closure_.callback(), base::TimeDelta::FromSeconds(10));
 }
 
 std::unique_ptr<net::CookieStore::CookieChangedSubscription>
 CookieStoreIOS::AddCallbackForCookie(const GURL& gurl,
                                      const std::string& name,
                                      const CookieChangedCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // Prefill cookie cache with all pertinent cookies for |url| if needed.
   std::pair<GURL, std::string> key(gurl, name);
@@ skipping 163 matching lines @@
                     weak_factory_.GetWeakPtr(), callback);
 }
 
 base::Closure CookieStoreIOS::WrapClosure(const base::Closure& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   return base::Bind(&CookieStoreIOS::UpdateCachesAfterClosure,
                     weak_factory_.GetWeakPtr(), callback);
 }
 
 }  // namespace net