Adds enableVirtualTime and setVirtualTimePolicy To Emulation domain.

components/scheduler/renderer/web_frame_scheduler_impl.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/renderer/web_frame_scheduler_impl.h"
 
 #include "base/trace_event/blame_context.h"
 #include "components/scheduler/base/real_time_domain.h"
 #include "components/scheduler/base/virtual_time_domain.h"
 #include "components/scheduler/child/web_task_runner_impl.h"
@@ skipping 65 matching lines @@
           parent_web_view_scheduler_->virtual_time_domain());
     } else if (!page_visible_) {
       renderer_scheduler_->throttling_helper()->IncreaseThrottleRefCount(
           timer_task_queue_.get());
     }
     timer_web_task_runner_.reset(new WebTaskRunnerImpl(timer_task_queue_));
   }
   return timer_web_task_runner_.get();
 }
 
+blink::WebViewScheduler* WebFrameSchedulerImpl::webViewScheduler() {
+  return parent_web_view_scheduler_;
+}
+
 void WebFrameSchedulerImpl::setPageVisible(bool page_visible) {
   DCHECK(parent_web_view_scheduler_);
   if (page_visible_ == page_visible)
     return;
 
   page_visible_ = page_visible;
 
   if (!timer_web_task_runner_ ||
       parent_web_view_scheduler_->virtual_time_domain()) {
     return;
@@ skipping 19 matching lines @@
         parent_web_view_scheduler_->virtual_time_domain());
   }
 
   if (loading_task_queue_) {
     loading_task_queue_->SetTimeDomain(
         parent_web_view_scheduler_->virtual_time_domain());
   }
 }
 
 }  // namespace scheduler