Update from https://crrev.com/316786

cc/resources/bitmap_tile_task_worker_pool.cc

Index: cc/resources/bitmap_tile_task_worker_pool.cc
diff --git a/cc/resources/bitmap_tile_task_worker_pool.cc b/cc/resources/bitmap_tile_task_worker_pool.cc
index 77abd8dc04b2377a1f2ebd871c1660a1fd6f0e89..1abbb46420692d15a70e232063738bc17e4c8d8c 100644
--- a/cc/resources/bitmap_tile_task_worker_pool.cc
+++ b/cc/resources/bitmap_tile_task_worker_pool.cc
@@ -191,10 +191,10 @@ void BitmapTileTaskWorkerPool::OnTaskSetFinished(TaskSet task_set) {
   client_->DidFinishRunningTileTasks(task_set);
 }
 
-scoped_refptr<base::debug::ConvertableToTraceFormat>
+scoped_refptr<base::trace_event::ConvertableToTraceFormat>
 BitmapTileTaskWorkerPool::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)