Remove cc::OrderedSimpleTaskRunner \o/.

Long live base::TestMockTimeTaskRunner.

Bug: 863350
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel
Change-Id: Id3df59c1fb1588e95e0135c7c6a90cfad47d29f1
Reviewed-on: https://chromium-review.googlesource.com/1140062
Commit-Queue: Greg Kraynov <kraynov@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575612}

components/viz/test/BUILD.gn

@@ -30,8 +30,6 @@ viz_static_library("test_support") {
     "mock_display_client.cc",
     "mock_display_client.h",
     "mock_helper.h",
-    "ordered_simple_task_runner.cc",
-    "ordered_simple_task_runner.h",
     "ordered_texture_map.cc",
     "ordered_texture_map.h",
     "paths.cc",
@@ -98,7 +96,6 @@ viz_source_set("unit_tests") {
   sources = [
     "begin_frame_source_test_unittest.cc",
     "mock_helper_unittest.cc",
-    "ordered_simple_task_runner_unittest.cc",
     "test_gles2_interface_unittest.cc",
   ]
   deps = [

components/viz/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 COMPONENTS_VIZ_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_
-#define COMPONENTS_VIZ_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_
-
-#include <stddef.h>
-
-#include <limits>
-#include <memory>
-#include <set>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/test/simple_test_tick_clock.h"
-#include "base/test/test_simple_task_runner.h"
-#include "base/threading/thread_checker.h"
-#include "base/trace_event/trace_event.h"
-
-namespace cc {
-
-// Subclass of TestPendingTask which has a unique ID for every task, supports
-// being used inside a std::set and has debug tracing support.
-class TestOrderablePendingTask : public base::TestPendingTask {
- public:
-  TestOrderablePendingTask();
-  TestOrderablePendingTask(const base::Location& location,
-                           base::OnceClosure task,
-                           base::TimeTicks post_time,
-                           base::TimeDelta delay,
-                           TestNestability nestability);
-  TestOrderablePendingTask(TestOrderablePendingTask&&);
-  ~TestOrderablePendingTask();
-
-  TestOrderablePendingTask& operator=(TestOrderablePendingTask&&);
-
-  // operators needed by std::set and comparison
-  bool operator==(const TestOrderablePendingTask& other) const;
-  bool operator<(const TestOrderablePendingTask& other) const;
-
-  // base::trace_event tracing functionality
-  std::unique_ptr<base::trace_event::ConvertableToTraceFormat> AsValue() const;
-  void AsValueInto(base::trace_event::TracedValue* state) const;
-
-  size_t task_id() const { return task_id_; }
-
- private:
-  static size_t task_id_counter;
-  size_t task_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestOrderablePendingTask);
-};
-
-// 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(base::SimpleTestTickClock* now_src, bool advance_now);
-
-  // base::TestSimpleTaskRunner implementation:
-  bool PostDelayedTask(const base::Location& from_here,
-                       base::OnceClosure task,
-                       base::TimeDelta delay) override;
-  bool PostNonNestableDelayedTask(const base::Location& from_here,
-                                  base::OnceClosure task,
-                                  base::TimeDelta delay) override;
-
-  bool RunsTasksInCurrentSequence() 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;
-  }
-
-  size_t NumPendingTasks() const;
-  bool HasPendingTasks() const;
-  base::TimeTicks NextTaskTime();
-  base::TimeDelta DelayToNextTaskTime();
-
-  // Run tasks while the callback returns true or too many tasks have been run.
-  // Returns true if there are still pending tasks left.
-  bool RunTasksWhile(base::Callback<bool(void)> condition);
-
-  // Run tasks while *all* of the callbacks return true or too many tasks have
-  // been run. Exits on the *first* condition which returns false, skipping
-  // calling all remaining conditions. Conditions can have side effects,
-  // including modifying the task queue.
-  // Returns true if there are still pending tasks left.
-  bool RunTasksWhile(const std::vector<base::Callback<bool(void)>>& conditions);
-
-  // Convenience functions to run tasks with common conditions.
-
-  // Run tasks which existed at the start of this call.
-  // Return code indicates tasks still exist to run.
-  bool RunPendingTasks();
-  // Keep running tasks until no tasks are left.
-  // Return code indicates tasks still exist to run which also indicates if
-  // runner reached idle.
-  bool RunUntilIdle();
-  // Keep running tasks until given time period.
-  // Return code indicates tasks still exist to run.
-  bool RunUntilTime(base::TimeTicks time);
-  bool RunForPeriod(base::TimeDelta period);
-
-  // base::trace_event tracing functionality
-  std::unique_ptr<base::trace_event::ConvertableToTraceFormat> AsValue() const;
-  virtual void AsValueInto(base::trace_event::TracedValue* state) const;
-
-  // Common conditions to run for, exposed publicly to allow external users to
-  // use their own combinations.
-  // -------------------------------------------------------------------------
-
-  // Keep running until the given number of tasks have run.
-  // You generally shouldn't use this check as it will cause your tests to fail
-  // when code is changed adding a new task. It is useful as a "timeout" type
-  // solution.
-  base::Callback<bool(void)> TaskRunCountBelow(size_t max_tasks);
-
-  // Keep running until a task which didn't exist initially would run.
-  base::Callback<bool(void)> TaskExistedInitially();
-
-  // Stop running tasks when NextTaskTime() >= stop_at
-  base::Callback<bool(void)> NowBefore(base::TimeTicks stop_at);
-
-  // Advance Now() to the next task to run.
-  base::Callback<bool(void)> AdvanceNow();
-
-  // Removes all tasks whose weak pointer has been revoked.
-  void RemoveCancelledTasks();
-
- protected:
-  static bool TaskRunCountBelowCallback(size_t max_tasks, size_t* task_run);
-  bool TaskExistedInitiallyCallback(const std::set<size_t>& existing_tasks);
-  bool NowBeforeCallback(base::TimeTicks stop_at);
-  bool AdvanceNowCallback();
-
-  ~OrderedSimpleTaskRunner() override;
-
-  base::ThreadChecker thread_checker_;
-
-  bool advance_now_;
-  // Not owned.
-  base::SimpleTestTickClock* 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  // COMPONENTS_VIZ_TEST_ORDERED_SIMPLE_TASK_RUNNER_H_