[scheduler] Add TaskQueue::Observer

third_party/WebKit/Source/platform/scheduler/base/time_domain_unittest.cc

 // 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.
 
 #include "platform/scheduler/base/time_domain.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "platform/scheduler/base/task_queue_impl.h"
 #include "platform/scheduler/base/task_queue_manager.h"
 #include "platform/scheduler/base/task_queue_manager_delegate_for_test.h"
 #include "platform/scheduler/base/test_time_source.h"
 #include "platform/scheduler/base/work_queue.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 using testing::_;
 using testing::AnyNumber;
 using testing::Mock;
 
 namespace blink {
 namespace scheduler {
 
 class MockTimeDomain : public TimeDomain {
  public:
-  explicit MockTimeDomain(TimeDomain::Observer* observer)
-      : TimeDomain(observer),
-        now_(base::TimeTicks() + base::TimeDelta::FromSeconds(1)) {}
+  MockTimeDomain()
+      : now_(base::TimeTicks() + base::TimeDelta::FromSeconds(1)) {}
 
   ~MockTimeDomain() override {}
 
   using TimeDomain::CancelDelayedWork;
   using TimeDomain::NextScheduledRunTime;
   using TimeDomain::NextScheduledTaskQueue;
-  using TimeDomain::OnQueueHasImmediateWork;
   using TimeDomain::ScheduleDelayedWork;
   using TimeDomain::UnregisterQueue;
   using TimeDomain::WakeupReadyDelayedQueues;
 
   // TimeSource implementation:
   LazyNow CreateLazyNow() const override { return LazyNow(now_); }
   base::TimeTicks Now() const override { return now_; }
 
   void AsValueIntoInternal(
       base::trace_event::TracedValue* state) const override {}
@@ skipping 28 matching lines @@
                                     TaskQueue::Spec(TaskQueue::QueueType::TEST),
                                     "test.category", "test.category"));
   }
 
   void TearDown() final {
     if (task_queue_)
       task_queue_->UnregisterTaskQueue();
   }
 
   virtual MockTimeDomain* CreateMockTimeDomain() {
-    return new MockTimeDomain(nullptr);
+    return new MockTimeDomain();
   }
 
   std::unique_ptr<MockTimeDomain> time_domain_;
   scoped_refptr<internal::TaskQueueImpl> task_queue_;
 };
 
 TEST_F(TimeDomainTest, ScheduleDelayedWork) {
   base::TimeDelta delay = base::TimeDelta::FromMilliseconds(10);
   base::TimeTicks delayed_runtime = time_domain_->Now() + delay;
   EXPECT_CALL(*time_domain_.get(), RequestWakeupAt(_, delayed_runtime));
@@ skipping 227 matching lines @@
   EXPECT_EQ(run_time2, next_run_time);
 
   Mock::VerifyAndClearExpectations(time_domain_.get());
   EXPECT_CALL(*time_domain_.get(), RequestWakeupAt(_, _)).Times(AnyNumber());
   EXPECT_CALL(*time_domain_.get(), CancelWakeupAt(_)).Times(AnyNumber());
 
   // Tidy up.
   task_queue2->UnregisterTaskQueue();
 }
 
-namespace {
-class MockObserver : public TimeDomain::Observer {
- public:
-  ~MockObserver() override {}
-
-  MOCK_METHOD1(OnTimeDomainHasImmediateWork, void(TaskQueue*));
-  MOCK_METHOD1(OnTimeDomainHasDelayedWork, void(TaskQueue*));
-};
-}  // namespace
-
-class TimeDomainWithObserverTest : public TimeDomainTest {
- public:
-  MockTimeDomain* CreateMockTimeDomain() override {
-    observer_.reset(new MockObserver());
-    return new MockTimeDomain(observer_.get());
-  }
-
-  std::unique_ptr<MockObserver> observer_;
-};
-
-TEST_F(TimeDomainWithObserverTest, OnTimeDomainHasImmediateWork) {
-  EXPECT_CALL(*observer_, OnTimeDomainHasImmediateWork(task_queue_.get()));
-  time_domain_->OnQueueHasImmediateWork(task_queue_.get());
-}
-
-TEST_F(TimeDomainWithObserverTest, OnTimeDomainHasDelayedWork) {
-  EXPECT_CALL(*observer_, OnTimeDomainHasDelayedWork(task_queue_.get()));
-  EXPECT_CALL(*time_domain_.get(), RequestWakeupAt(_, _));
-  base::TimeTicks now = time_domain_->Now();
-  time_domain_->ScheduleDelayedWork(
-      task_queue_.get(), {now + base::TimeDelta::FromMilliseconds(10), 0}, now);
-}
-
 }  // namespace scheduler
 }  // namespace blink