[tracing] Adding task information to heap profiler

base/threading/sequenced_worker_pool.cc

Index: base/threading/sequenced_worker_pool.cc
diff --git a/base/threading/sequenced_worker_pool.cc b/base/threading/sequenced_worker_pool.cc
index 086f54ba805e1c11fb519d441730ae34822d8acc..52663dcbec4420f59fa2bb8e422b4319ce0967db 100644
--- a/base/threading/sequenced_worker_pool.cc
+++ b/base/threading/sequenced_worker_pool.cc
@@ -809,6 +809,7 @@ void SequencedWorkerPool::Inner::ThreadLoop(Worker* this_worker) {
             TRACE_EVENT_FLAG_FLOW_IN,
             "src_file", task.posted_from.file_name(),
             "src_func", task.posted_from.function_name());
+        TRACE_TASK_EXECUTION("SequencedWorkerPool::Inner::ThreadLoop", task);
         int new_thread_id = WillRunWorkerTask(task);
         {
           AutoUnlock unlock(lock_);