Make blink platform time consistent with the timer virtual time

components/scheduler/child/virtual_time_tqm_delegate.cc

Index: components/scheduler/child/virtual_time_tqm_delegate.cc
diff --git a/components/scheduler/child/virtual_time_tqm_delegate.cc b/components/scheduler/child/virtual_time_tqm_delegate.cc
index 2d7399ffce5cb46153004c55508d9a72a27bf90f..a5aebf1bdbd76306a6be91a9c67b939e2fe357d7 100644
--- a/components/scheduler/child/virtual_time_tqm_delegate.cc
+++ b/components/scheduler/child/virtual_time_tqm_delegate.cc
@@ -65,6 +65,10 @@ base::TimeTicks VirtualTimeTqmDelegate::NowTicks() {
   return now_;
 }
 
+double VirtualTimeTqmDelegate::CurrentTimeSeconds() const {
+  return (now_ - base::TimeTicks::UnixEpoch()).InSecondsF();
+}
+
 void VirtualTimeTqmDelegate::AdvancedTimeTo(base::TimeTicks now) {
   now_ = now;
   DCHECK_GE(now, now_);