Adds a flag to support "Virtual Time" to the blink scheduler

content/test/test_blink_web_unit_test_support.cc

Index: content/test/test_blink_web_unit_test_support.cc
diff --git a/content/test/test_blink_web_unit_test_support.cc b/content/test/test_blink_web_unit_test_support.cc
index be23db8011e2928e19444cc43f9ed93b808c2caa..c24974ee4030ea0cf39446f730a41a8428ef09fc 100644
--- a/content/test/test_blink_web_unit_test_support.cc
+++ b/content/test/test_blink_web_unit_test_support.cc
@@ -110,7 +110,8 @@ TestBlinkWebUnitTestSupport::TestBlinkWebUnitTestSupport() {
         new base::ThreadTaskRunnerHandle(dummy_task_runner));
   }
   renderer_scheduler_ = make_scoped_ptr(new scheduler::RendererSchedulerImpl(
-      scheduler::LazySchedulerMessageLoopDelegateForTests::Create()));
+      scheduler::LazySchedulerMessageLoopDelegateForTests::Create(),
+      scheduler::RendererSchedulerImpl::TimeSource::NORMAL));
   web_thread_.reset(new scheduler::WebThreadImplForRendererScheduler(
       renderer_scheduler_.get()));