Prepare for per-webview virtual time

components/scheduler/common/scheduler_switches.cc

 // Copyright 2015 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 "components/scheduler/common/scheduler_switches.h"
 
 namespace scheduler {
 namespace switches {
 
-// Enable Virtualized time where the render thread's time source skips forward
-// to the next scheduled delayed time if there is no more non-delayed work to be
-// done.
-const char kEnableVirtualizedTime[] = "enable-virtualized-time";
-
 // Disable task throttling of timer tasks from background pages.
 const char kDisableBackgroundTimerThrottling[] =
     "disable-background-timer-throttling";
 
 }  // namespace switches
 }  // namespace scheduler