[scheduler] Split lock in TaskQueueImpl.

third_party/WebKit/Source/platform/scheduler/base/work_queue.cc

Index: third_party/WebKit/Source/platform/scheduler/base/work_queue.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/base/work_queue.cc b/third_party/WebKit/Source/platform/scheduler/base/work_queue.cc
index 64cf33adbc1b3805fa956bace54d73c17437d8d0..b0aba7ea5f2e9888592087f83e1c82fc03edc1e0 100644
--- a/third_party/WebKit/Source/platform/scheduler/base/work_queue.cc
+++ b/third_party/WebKit/Source/platform/scheduler/base/work_queue.cc
@@ -119,7 +119,7 @@ TaskQueueImpl::Task WorkQueue::TakeTaskFromWorkQueue() {
   // OnPopQueue calls GetFrontTaskEnqueueOrder which checks BlockedByFence() so
   // we don't need to here.
   work_queue_sets_->OnPopQueue(this);
-  task_queue_->TraceQueueSize(false);
+  task_queue_->TraceQueueSize();
   return pending_task;
 }