TaskScheduler: Change Sequence::PeekTask to Sequence::TakeTask.

base/task_scheduler/scheduler_worker.h

Index: base/task_scheduler/scheduler_worker.h
diff --git a/base/task_scheduler/scheduler_worker.h b/base/task_scheduler/scheduler_worker.h
index eee2f4a56c723304809cc99371c446f7bf64d6a3..ec49eb8d61c935fd61102ca857ddfdce9eec0ee4 100644
--- a/base/task_scheduler/scheduler_worker.h
+++ b/base/task_scheduler/scheduler_worker.h
@@ -53,10 +53,11 @@ class BASE_EXPORT SchedulerWorker {
     // run a Task.
     virtual scoped_refptr<Sequence> GetWork(SchedulerWorker* worker) = 0;
 
-    // Called by the SchedulerWorker after it ran |task|. |task_latency| is the
-    // time elapsed between when the task was posted and when it started to run.
-    virtual void DidRunTask(const Task* task,
-                            const TimeDelta& task_latency) = 0;
+    // Called by the SchedulerWorker after it ran a task with |task_priority|.
+    // |task_latency| is the time elapsed between when the task was posted and
+    // when it started to run.
+    virtual void DidRunTaskWithPriority(TaskPriority task_priority,
+                                        const TimeDelta& task_latency) = 0;
 
     // Called when |sequence| isn't empty after the SchedulerWorker pops a Task
     // from it. |sequence| is the last Sequence returned by GetWork().