[ash-md] Added a delay between system menu default/detailed view transitions.

base/test/test_mock_time_task_runner.h

 // Copyright 2015 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 BASE_TEST_TEST_MOCK_TIME_TASK_RUNNER_H_
 #define BASE_TEST_TEST_MOCK_TIME_TASK_RUNNER_H_
 
 #include <stddef.h>
 
+#include <deque>
 #include <memory>
 #include <queue>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/test/test_pending_task.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
@@ skipping 56 matching lines @@
   TimeTicks NowTicks() const;
 
   // Returns a Clock that uses the virtual time of |this| as its time source.
   // The returned Clock will hold a reference to |this|.
   std::unique_ptr<Clock> GetMockClock() const;
 
   // Returns a TickClock that uses the virtual time ticks of |this| as its tick
   // source. The returned TickClock will hold a reference to |this|.
   std::unique_ptr<TickClock> GetMockTickClock() const;
 
+  std::deque<TestPendingTask> TakePendingTasks();
   bool HasPendingTask() const;
   size_t GetPendingTaskCount() const;
   TimeDelta NextPendingTaskDelay() const;
 
   // SingleThreadTaskRunner:
   bool RunsTasksOnCurrentThread() const override;
   bool PostDelayedTask(const tracked_objects::Location& from_here,
                        const Closure& task,
                        TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
@@ skipping 62 matching lines @@
 
   // The ordinal to use for the next task. Must only be accessed while the
   // |tasks_lock_| is held.
   size_t next_task_ordinal_;
 
   Lock tasks_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(TestMockTimeTaskRunner);
 };
 
+// A scoped wrapper around TestMockTimeTaskRunner that replaces message loop's
+// task runner with a TestMockTimeTaskRunner and resets it back at the end of
+// the scope.
+class ScopedMockTaskRunnerWrapper {

[danakj, 2016/11/15 21:56:37]

This moved to another file right? Why's it here too?

[bruthig, 2016/11/15 22:00:52]

Just to make sure my reviewers are on the ball. Kudos, you passed! :P

+ public:
+  ScopedMockTaskRunnerWrapper();
+  virtual ~ScopedMockTaskRunnerWrapper();
+
+  base::TestMockTimeTaskRunner* task_runner() { return task_runner_.get(); }
+
+ private:
+  scoped_refptr<base::TestMockTimeTaskRunner> task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> previous_task_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedMockTaskRunnerWrapper);
+};
+
 }  // namespace base
 
 #endif  // BASE_TEST_TEST_MOCK_TIME_TASK_RUNNER_H_