Make blink platform time consistent with the timer virtual time

content/test/fake_renderer_scheduler.h

Index: content/test/fake_renderer_scheduler.h
diff --git a/content/test/fake_renderer_scheduler.h b/content/test/fake_renderer_scheduler.h
index 168b4284fedd0e82e2d7f23df4e50f48c27e1046..4367f3f17d1babcdc0713834a479fd72d2600d38 100644
--- a/content/test/fake_renderer_scheduler.h
+++ b/content/test/fake_renderer_scheduler.h
@@ -51,6 +51,8 @@ class FakeRendererScheduler : public scheduler::RendererScheduler {
   void SuspendTimerQueue() override;
   void ResumeTimerQueue() override;
   void SetTimerQueueSuspensionWhenBackgroundedEnabled(bool enabled) override;
+  double CurrentTimeSeconds() const override;
+  double MonotonicallyIncreasingTimeSeconds() const override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeRendererScheduler);