Update from https://crrev.com/316786

cc/resources/zero_copy_tile_task_worker_pool.cc

Index: cc/resources/zero_copy_tile_task_worker_pool.cc
diff --git a/cc/resources/zero_copy_tile_task_worker_pool.cc b/cc/resources/zero_copy_tile_task_worker_pool.cc
index 943221457cb3965a19f21de8fa455c1fc99c6a6f..8b80aa3292207d48f52c5033bb2b121fec3b9441 100644
--- a/cc/resources/zero_copy_tile_task_worker_pool.cc
+++ b/cc/resources/zero_copy_tile_task_worker_pool.cc
@@ -196,10 +196,10 @@ void ZeroCopyTileTaskWorkerPool::OnTaskSetFinished(TaskSet task_set) {
   client_->DidFinishRunningTileTasks(task_set);
 }
 
-scoped_refptr<base::debug::ConvertableToTraceFormat>
+scoped_refptr<base::trace_event::ConvertableToTraceFormat>
 ZeroCopyTileTaskWorkerPool::StateAsValue() const {
-  scoped_refptr<base::debug::TracedValue> state =
-      new base::debug::TracedValue();
+  scoped_refptr<base::trace_event::TracedValue> state =
+      new base::trace_event::TracedValue();
 
   state->BeginArray("tasks_pending");
   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set)