Revert of [Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/core/frame/LocalFrame.cpp

Index: third_party/WebKit/Source/core/frame/LocalFrame.cpp
diff --git a/third_party/WebKit/Source/core/frame/LocalFrame.cpp b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
index 43b9d1d9f92f63b4f6c8eeaa3090af4188cae133..455246e40e18ec3bbc57456cb5c97b84a929fba1 100644
--- a/third_party/WebKit/Source/core/frame/LocalFrame.cpp
+++ b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
@@ -440,16 +440,6 @@ void LocalFrame::setPagePopupOwner(Element& owner)
     m_pagePopupOwner = &owner;
 }
 
-Element* LocalFrame::pagePopupOwner() const
-{
-    return m_pagePopupOwner.get();
-}
-
-LocalDOMWindow* LocalFrame::localDOMWindow() const
-{
-    return m_domWindow.get();
-}
-
 LayoutView* LocalFrame::contentLayoutObject() const
 {
     return document() ? document()->layoutView() : nullptr;