Introduce TaskRunner::RunsTasksInCurrentSequence()

components/memory_pressure/memory_pressure_monitor_unittest.cc

 // Copyright 2016 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/memory_pressure/memory_pressure_monitor.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 28 matching lines @@
   MOCK_METHOD2(PostDelayedTask,
                bool(const tracked_objects::Location&, base::TimeDelta));
 };
 using MockTaskRunner = testing::StrictMock<LenientMockTaskRunner>;
 
 // A TaskRunner implementation that wraps a MockTaskRunner.
 class TaskRunnerProxy : public base::TaskRunner {
  public:
   // The provided |mock| must outlive this object.
   explicit TaskRunnerProxy(MockTaskRunner* mock) : mock_(mock) {}
-  bool RunsTasksOnCurrentThread() const override { return true; }
+  bool RunsTasksInCurrentSequence() const override { return true; }
   bool PostDelayedTask(const tracked_objects::Location& location,
                        base::OnceClosure closure,
                        base::TimeDelta delta) override {
     return mock_->PostDelayedTask(location, delta);
   }
 
  private:
   MockTaskRunner* mock_;
   ~TaskRunnerProxy() override {}
 };
@@ skipping 320 matching lines @@
   ExpectDispatchCritical();
   monitor_->OnMemoryPressureChanged(MEMORY_PRESSURE_LEVEL_CRITICAL);
   VerifyAndClearExpectations();
   ExpectCritical();
   EXPECT_EQ(2u, monitor_->scheduled_checks().size());
 }
 
 #endif  // !MEMORY_PRESSURE_IS_POLLING
 
 }  // namespace memory_pressure