Standardize usage of virtual/override/final in cc/

cc/test/ordered_simple_task_runner.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_
 #define CC_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_
 
 #include <limits>
 #include <set>
 #include <vector>
@@ skipping 35 matching lines @@
 // This runs pending tasks based on task's post_time + delay.
 // We should not execute a delayed task sooner than some of the queued tasks
 // which don't have a delay even though it is queued early.
 class OrderedSimpleTaskRunner : public base::SingleThreadTaskRunner {
  public:
   OrderedSimpleTaskRunner();
   OrderedSimpleTaskRunner(scoped_refptr<TestNowSource> now_src,
                           bool advance_now);
 
   // base::TestSimpleTaskRunner implementation:
-  virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
-                               const base::Closure& task,
-                               base::TimeDelta delay) override;
-  virtual bool PostNonNestableDelayedTask(
-      const tracked_objects::Location& from_here,
-      const base::Closure& task,
-      base::TimeDelta delay) override;
+  bool PostDelayedTask(const tracked_objects::Location& from_here,
+                       const base::Closure& task,
+                       base::TimeDelta delay) override;
+  bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
+                                  const base::Closure& task,
+                                  base::TimeDelta delay) override;
 
-  virtual bool RunsTasksOnCurrentThread() const override;
+  bool RunsTasksOnCurrentThread() const override;
 
   // Set a maximum number of tasks to run at once. Useful as a timeout to
   // prevent infinite task loops.
   static const size_t kAbsoluteMaxTasks;
   void SetRunTaskLimit(size_t max_tasks) { max_tasks_ = max_tasks; }
   void ClearRunTaskLimit() { max_tasks_ = kAbsoluteMaxTasks; }
 
   // Allow task runner to advance now when running tasks.
   void SetAutoAdvanceNowToPendingTasks(bool advance_now) {
     advance_now_ = advance_now;
@@ skipping 51 matching lines @@
   // Advance Now() to the next task to run.
   base::Callback<bool(void)> AdvanceNow();
 
  protected:
   static bool TaskRunCountBelowCallback(size_t max_tasks, size_t* task_run);
   bool TaskExistedInitiallyCallback(
       const std::set<TestOrderablePendingTask>& existing_tasks);
   bool NowBeforeCallback(base::TimeTicks stop_at);
   bool AdvanceNowCallback();
 
-  virtual ~OrderedSimpleTaskRunner();
+  ~OrderedSimpleTaskRunner() override;
 
   base::ThreadChecker thread_checker_;
 
   bool advance_now_;
   scoped_refptr<TestNowSource> now_src_;
 
   size_t max_tasks_;
 
   bool inside_run_tasks_until_;
   std::set<TestOrderablePendingTask> pending_tasks_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(OrderedSimpleTaskRunner);
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_