Make blink platform time consistent with the timer virtual time

components/scheduler/child/virtual_time_tqm_delegate.h

 // 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.
 
 #ifndef COMPONENTS_SCHEDULER_CHILD_VIRTUAL_TIME_TQM_DELEGATE_H_
 #define COMPONENTS_SCHEDULER_CHILD_VIRTUAL_TIME_TQM_DELEGATE_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 18 matching lines @@
   bool PostDelayedTask(const tracked_objects::Location& from_here,
                        const base::Closure& task,
                        base::TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
                                   const base::Closure& task,
                                   base::TimeDelta delay) override;
   bool RunsTasksOnCurrentThread() const override;
   bool IsNested() const override;
   base::TimeTicks NowTicks() override;
   void OnNoMoreImmediateWork() override;
+  double CurrentTimeSeconds() const override;
 
  protected:
   ~VirtualTimeTqmDelegate() override;
 
  private:
   explicit VirtualTimeTqmDelegate(base::MessageLoop* message_loop,
                                   base::TimeTicks initial_no);
 
   void AdvancedTimeTo(base::TimeTicks now);
 
   typedef std::multimap<base::TimeTicks, base::Closure> DelayedWakeupMultimap;
 
   DelayedWakeupMultimap delayed_wakeup_multimap_;
 
   // Not owned.
   base::MessageLoop* message_loop_;
   scoped_refptr<SingleThreadTaskRunner> message_loop_task_runner_;
   base::TimeTicks now_;
 
   DISALLOW_COPY_AND_ASSIGN(VirtualTimeTqmDelegate);
 };
 
 }  // namespace scheduler
 
 #endif  // COMPONENTS_SCHEDULER_CHILD_VIRTUAL_TIME_TQM_DELEGATE_H_