Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/web/RemoteFrameClientImpl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef RemoteFrameClientImpl_h
 #define RemoteFrameClientImpl_h
 
 #include "core/frame/RemoteFrameClient.h"
 
 namespace blink {
 class WebRemoteFrameImpl;
 
 class RemoteFrameClientImpl final : public RemoteFrameClient {
 public:
-    static PassOwnPtrWillBeRawPtr<RemoteFrameClientImpl> create(WebRemoteFrameImpl*);
+    static RawPtr<RemoteFrameClientImpl> create(WebRemoteFrameImpl*);
 
     DECLARE_VIRTUAL_TRACE();
 
     // FrameClient overrides:
     bool inShadowTree() const override;
     void willBeDetached() override;
     void detached(FrameDetachType) override;
     Frame* opener() const override;
     void setOpener(Frame*) override;
     Frame* parent() const override;
@@ skipping 12 matching lines @@
     void forwardInputEvent(Event*) override;
     void frameRectsChanged(const IntRect& frameRect) override;
     void advanceFocus(WebFocusType, LocalFrame*) override;
     void visibilityChanged(bool visible) override;
 
     WebRemoteFrameImpl* webFrame() const { return m_webFrame; }
 
 private:
     explicit RemoteFrameClientImpl(WebRemoteFrameImpl*);
 
-    RawPtrWillBeMember<WebRemoteFrameImpl> m_webFrame;
+    Member<WebRemoteFrameImpl> m_webFrame;
 };
 
 } // namespace blink
 
 #endif // RemoteFrameClientImpl_h