Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/dom/ScopedWindowFocusAllowedIndicator.h
diff --git a/third_party/WebKit/Source/core/dom/ScopedWindowFocusAllowedIndicator.h b/third_party/WebKit/Source/core/dom/ScopedWindowFocusAllowedIndicator.h
index 51c53678ae78790c518460f0996d637e5769a97e..01917758ca0d3589994c7f5ebf2896e546fcaf7e 100644
--- a/third_party/WebKit/Source/core/dom/ScopedWindowFocusAllowedIndicator.h
+++ b/third_party/WebKit/Source/core/dom/ScopedWindowFocusAllowedIndicator.h
@@ -16,7 +16,7 @@ class ScopedWindowFocusAllowedIndicator final {
     WTF_MAKE_NONCOPYABLE(ScopedWindowFocusAllowedIndicator);
 public:
     explicit ScopedWindowFocusAllowedIndicator(ExecutionContext* executionContext)
-        : m_observer(adoptPtrWillBeNoop(new Observer(executionContext)))
+        : m_observer(new Observer(executionContext))
     {
     }
     ~ScopedWindowFocusAllowedIndicator()
@@ -25,8 +25,8 @@ public:
     }
 
 private:
-    class Observer final : public NoBaseWillBeGarbageCollectedFinalized<Observer>, public ContextLifecycleObserver {
-        WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Observer);
+    class Observer final : public GarbageCollectedFinalized<Observer>, public ContextLifecycleObserver {
+        USING_GARBAGE_COLLECTED_MIXIN(Observer);
     public:
         explicit Observer(ExecutionContext* executionContext)
             : ContextLifecycleObserver(executionContext)
@@ -51,7 +51,7 @@ private:
     // The Observer indirection is needed to keep
     // ScopedWindowFocusAllowedIndicator off-heap and thus allows its destructor
     // to call getExecutionContext()->consumeWindowInteraction().
-    OwnPtrWillBePersistent<Observer> m_observer;
+    Persistent<Observer> m_observer;
 };
 
 } // namespace blink