Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp

Index: third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp b/third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp
index fa1e7514f3137996d010315fb8d3b8b01442d845..4ef905c5bea5b0c8330c054e14ffb277f1fc3332 100644
--- a/third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/custom/V8MutationObserverCustom.cpp
@@ -59,8 +59,8 @@ void V8MutationObserver::constructorCustom(const v8::FunctionCallbackInfo<v8::Va
 
     v8::Local<v8::Object> wrapper = info.Holder();
 
-    OwnPtrWillBeRawPtr<MutationCallback> callback = V8MutationCallback::create(v8::Local<v8::Function>::Cast(arg), wrapper, ScriptState::current(info.GetIsolate()));
-    RefPtrWillBeRawPtr<MutationObserver> observer = MutationObserver::create(callback.release());
+    RawPtr<MutationCallback> callback = V8MutationCallback::create(v8::Local<v8::Function>::Cast(arg), wrapper, ScriptState::current(info.GetIsolate()));
+    RawPtr<MutationObserver> observer = MutationObserver::create(callback.release());
 
     v8SetReturnValue(info, V8DOMWrapper::associateObjectWithWrapper(info.GetIsolate(), observer.get(), &wrapperTypeInfo, wrapper));
 }
@@ -68,8 +68,8 @@ void V8MutationObserver::constructorCustom(const v8::FunctionCallbackInfo<v8::Va
 void V8MutationObserver::visitDOMWrapper(v8::Isolate* isolate, ScriptWrappable* scriptWrappable, const v8::Persistent<v8::Object>& wrapper)
 {
     MutationObserver* observer = scriptWrappable->toImpl<MutationObserver>();
-    WillBeHeapHashSet<RawPtrWillBeMember<Node>> observedNodes = observer->getObservedNodes();
-    for (WillBeHeapHashSet<RawPtrWillBeMember<Node>>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
+    HeapHashSet<Member<Node>> observedNodes = observer->getObservedNodes();
+    for (HeapHashSet<Member<Node>>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
         v8::UniqueId id(reinterpret_cast<intptr_t>(V8GCController::opaqueRootForGC(isolate, *it)));
         isolate->SetReferenceFromGroup(id, wrapper);
     }