Make blink platform time consistent with the timer virtual time

content/test/fake_renderer_scheduler.cc

 // 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 "content/test/fake_renderer_scheduler.h"
 
 namespace content {
 
 FakeRendererScheduler::FakeRendererScheduler() {
 }
@@ skipping 100 matching lines @@
 
 void FakeRendererScheduler::SuspendTimerQueue() {
 }
 
 void FakeRendererScheduler::ResumeTimerQueue() {
 }
 
 void FakeRendererScheduler::SetTimerQueueSuspensionWhenBackgroundedEnabled(
     bool enabled) {}
 
+double FakeRendererScheduler::CurrentTimeSeconds() const {
+  return 0.0;
+}
+
+double FakeRendererScheduler::MonotonicallyIncreasingTimeSeconds() const {
+  return 0.0;
+}
+
 }  // namespace content