Revert of scheduler: Increase work batch size to 4

content/renderer/scheduler/renderer_scheduler_impl.cc

Index: content/renderer/scheduler/renderer_scheduler_impl.cc
diff --git a/content/renderer/scheduler/renderer_scheduler_impl.cc b/content/renderer/scheduler/renderer_scheduler_impl.cc
index f17cc4607a5f02733791b9d9420fe76c19694d26..fbd8cbe605c07dfd3b1a47f62f29c45e33b85fee 100644
--- a/content/renderer/scheduler/renderer_scheduler_impl.cc
+++ b/content/renderer/scheduler/renderer_scheduler_impl.cc
@@ -45,8 +45,8 @@
       CONTROL_TASK_QUEUE, RendererTaskQueueSelector::CONTROL_PRIORITY);
   renderer_task_queue_selector_->DisableQueue(IDLE_TASK_QUEUE);
   task_queue_manager_->SetAutoPump(IDLE_TASK_QUEUE, false);
-  // See crbug.com/444764 for how this work batch size was derived.
-  task_queue_manager_->SetWorkBatchSize(4);
+  // TODO(skyostil): Increase this to 4 (crbug.com/444764).
+  task_queue_manager_->SetWorkBatchSize(1);
 
   for (size_t i = 0; i < TASK_QUEUE_COUNT; i++) {
     task_queue_manager_->SetQueueName(