Oilpan: Move MainThreadTaskRunner into Oilpan heap.

Source/core/dom/MainThreadTaskRunnerTest.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2013 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 45 matching lines @@
     {
         *m_toBeMarked = true;
     }
 
     bool* m_toBeMarked;
 };
 
 TEST(MainThreadTaskRunnerTest, PostTask)
 {
     RefPtrWillBeRawPtr<NullExecutionContext> context = adoptRefWillBeNoop(new NullExecutionContext());
-    OwnPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
+    OwnPtrWillBeRawPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
     bool isMarked = false;
 
     runner->postTask(FROM_HERE, MarkingBooleanTask::create(&isMarked));
     EXPECT_FALSE(isMarked);
     blink::testing::runPendingTasks();
     EXPECT_TRUE(isMarked);
 }
 
 TEST(MainThreadTaskRunnerTest, SuspendTask)
 {
     RefPtrWillBeRawPtr<NullExecutionContext> context = adoptRefWillBeNoop(new NullExecutionContext());
-    OwnPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
+    OwnPtrWillBeRawPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
     bool isMarked = false;
 
     context->setTasksNeedSuspension(true);
     runner->postTask(FROM_HERE, MarkingBooleanTask::create(&isMarked));
     runner->suspend();
     blink::testing::runPendingTasks();
     EXPECT_FALSE(isMarked);
 
     context->setTasksNeedSuspension(false);
     runner->resume();
     blink::testing::runPendingTasks();
     EXPECT_TRUE(isMarked);
 }
 
 TEST(MainThreadTaskRunnerTest, RemoveRunner)
 {
     RefPtrWillBeRawPtr<NullExecutionContext> context = adoptRefWillBeNoop(new NullExecutionContext());
-    OwnPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
+    OwnPtrWillBeRawPtr<MainThreadTaskRunner> runner = MainThreadTaskRunner::create(context.get());
     bool isMarked = false;
 
     context->setTasksNeedSuspension(true);
     runner->postTask(FROM_HERE, MarkingBooleanTask::create(&isMarked));
     runner.clear();
     blink::testing::runPendingTasks();
     EXPECT_FALSE(isMarked);
 }
 
 } // namespace blink