Oilpan: Move MainThreadTaskRunner into Oilpan heap.

Source/core/dom/MainThreadTaskRunnerTest.cpp

Index: Source/core/dom/MainThreadTaskRunnerTest.cpp
diff --git a/Source/core/dom/MainThreadTaskRunnerTest.cpp b/Source/core/dom/MainThreadTaskRunnerTest.cpp
index 0a643596747e82a310325643c408eb9b725c8c37..9362bf5df3d6323de2ea9fa3691931f55bf24c2e 100644
--- a/Source/core/dom/MainThreadTaskRunnerTest.cpp
+++ b/Source/core/dom/MainThreadTaskRunnerTest.cpp
@@ -63,7 +63,7 @@ private:
 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));
@@ -75,7 +75,7 @@ TEST(MainThreadTaskRunnerTest, PostTask)
 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);
@@ -93,7 +93,7 @@ TEST(MainThreadTaskRunnerTest, SuspendTask)
 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);