Remove dependency on cc::TestNowSource from scheduler code

content/child/scheduler/worker_scheduler_impl.cc

Index: content/child/scheduler/worker_scheduler_impl.cc
diff --git a/content/child/scheduler/worker_scheduler_impl.cc b/content/child/scheduler/worker_scheduler_impl.cc
index f63886882087b3cfd2bd6019f96f482d8fd97be0..f35044964fa47fc7bbd6d5b68b78944fe278cd54 100644
--- a/content/child/scheduler/worker_scheduler_impl.cc
+++ b/content/child/scheduler/worker_scheduler_impl.cc
@@ -76,8 +76,8 @@ void WorkerSchedulerImpl::Shutdown() {
 }
 
 void WorkerSchedulerImpl::SetTimeSourceForTesting(
-    scoped_refptr<cc::TestNowSource> time_source) {
-  helper_.SetTimeSourceForTesting(time_source);
+    scoped_ptr<TimeSource> time_source) {
+  helper_.SetTimeSourceForTesting(time_source.Pass());
 }
 
 void WorkerSchedulerImpl::SetWorkBatchSizeForTesting(size_t work_batch_size) {