[scheduler]: Avoid waking up the scheduler to end long idle periods.

components/scheduler/child/idle_helper_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 "components/scheduler/child/idle_helper.h"
 
 #include "base/callback.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "cc/test/test_now_source.h"
 #include "components/scheduler/child/nestable_task_runner_for_test.h"
@@ skipping 192 matching lines @@
   }
 
  protected:
   static base::TimeDelta maximum_idle_period_duration() {
     return base::TimeDelta::FromMilliseconds(
         IdleHelper::kMaximumIdlePeriodMillis);
   }
 
   base::TimeTicks CurrentIdleTaskDeadlineForTesting() {
     base::TimeTicks deadline;
-    idle_helper_->CurrentIdleTaskDeadlineCallback(&deadline);
+    idle_helper_->CurrentIdleTaskDeadline(&deadline);
     return deadline;
   }
 
   scoped_refptr<cc::TestNowSource> clock_;
   // Only one of mock_task_runner_ or message_loop_ will be set.
   scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_;
   scoped_ptr<base::MessageLoop> message_loop_;
 
   scoped_refptr<NestableSingleThreadTaskRunner> nestable_task_runner_;
   scoped_ptr<SchedulerHelper> scheduler_helper_;
@@ skipping 651 matching lines @@
       clock_->Now() +
       base::TimeDelta::FromMilliseconds(kQuiescenceDelayMs + kLongIdlePeriodMs);
   default_task_runner_->PostTask(FROM_HERE, base::Bind(NullTask));
   RunUntilIdle();
 
   EXPECT_EQ(1, run_count);
   EXPECT_EQ(expected_deadline, deadline_in_task);
 }
 
 }  // namespace scheduler