Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h

Index: third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h
diff --git a/third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h b/third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h
index f8f76da1a396382fb60301a9f07f1a2c3042816f..f1d710c25f0d04a715f20c5c2273d7f907a18ae7 100644
--- a/third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h
+++ b/third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.h
@@ -19,12 +19,12 @@ class ExecutionContext;
 class IdleRequestCallback;
 class IdleRequestOptions;
 
-class ScriptedIdleTaskController : public RefCountedWillBeGarbageCollectedFinalized<ScriptedIdleTaskController>, public ActiveDOMObject {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ScriptedIdleTaskController);
+class ScriptedIdleTaskController : public GarbageCollectedFinalized<ScriptedIdleTaskController>, public ActiveDOMObject {
+    USING_GARBAGE_COLLECTED_MIXIN(ScriptedIdleTaskController);
 public:
-    static PassRefPtrWillBeRawPtr<ScriptedIdleTaskController> create(ExecutionContext* context)
+    static RawPtr<ScriptedIdleTaskController> create(ExecutionContext* context)
     {
-        return adoptRefWillBeNoop(new ScriptedIdleTaskController(context));
+        return new ScriptedIdleTaskController(context);
     }
     ~ScriptedIdleTaskController();
 
@@ -48,7 +48,7 @@ private:
     void runCallback(CallbackId, double deadlineSeconds, IdleDeadline::CallbackType);
 
     WebScheduler* m_scheduler; // Not owned.
-    PersistentHeapHashMapWillBeHeapHashMap<CallbackId, Member<IdleRequestCallback>> m_callbacks;
+    HeapHashMap<CallbackId, Member<IdleRequestCallback>> m_callbacks;
     Vector<CallbackId> m_pendingTimeouts;
     CallbackId m_nextCallbackId;
     bool m_suspended;