Tweak client-side default scheduler configs to match latest server configs.

ios/web/app/web_main_loop.mm

 // 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.
 
 #include "ios/web/app/web_main_loop.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 39 matching lines @@
           StandbyThreadPolicy::ONE,
           base::RecommendedMaxNumberOfThreadsInPool(2, 8, 0.1, 0),
           base::TimeDelta::FromSeconds(30)),
       base::SchedulerWorkerPoolParams(
           StandbyThreadPolicy::ONE,
           base::RecommendedMaxNumberOfThreadsInPool(3, 8, 0.3, 0),
           base::TimeDelta::FromSeconds(30)),
       base::SchedulerWorkerPoolParams(
           StandbyThreadPolicy::ONE,
           base::RecommendedMaxNumberOfThreadsInPool(3, 8, 0.3, 0),
-          base::TimeDelta::FromSeconds(30)));
+          base::TimeDelta::FromSeconds(60)));
 }
 
 }  // namespace
 
 // The currently-running WebMainLoop.  There can be one or zero.
 // TODO(rohitrao): Desktop uses this to implement
 // ImmediateShutdownAndExitProcess.  If we don't need that functionality, we can
 // remove this.
 WebMainLoop* g_current_web_main_loop = nullptr;
 
@@ skipping 240 matching lines @@
   main_thread_.reset(
       new WebThreadImpl(WebThread::UI, base::MessageLoop::current()));
 }
 
 int WebMainLoop::WebThreadsStarted() {
   cookie_notification_bridge_.reset(new CookieNotificationBridge);
   return result_code_;
 }
 
 }  // namespace web