Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/web/WebHistoryItem.cpp

Index: third_party/WebKit/Source/web/WebHistoryItem.cpp
diff --git a/third_party/WebKit/Source/web/WebHistoryItem.cpp b/third_party/WebKit/Source/web/WebHistoryItem.cpp
index 54e6d82641e0a19bad47f52c2f77daf17449f4e5..227143512bc0d2f980f3c7ff83491ade246d0f42 100644
--- a/third_party/WebKit/Source/web/WebHistoryItem.cpp
+++ b/third_party/WebKit/Source/web/WebHistoryItem.cpp
@@ -219,18 +219,18 @@ WebVector<WebString> WebHistoryItem::getReferencedFilePaths() const
     return results;
 }
 
-WebHistoryItem::WebHistoryItem(const PassRefPtrWillBeRawPtr<HistoryItem>& item)
+WebHistoryItem::WebHistoryItem(const RawPtr<HistoryItem>& item)
     : m_private(item)
 {
 }
 
-WebHistoryItem& WebHistoryItem::operator=(const PassRefPtrWillBeRawPtr<HistoryItem>& item)
+WebHistoryItem& WebHistoryItem::operator=(const RawPtr<HistoryItem>& item)
 {
     m_private = item;
     return *this;
 }
 
-WebHistoryItem::operator PassRefPtrWillBeRawPtr<HistoryItem>() const
+WebHistoryItem::operator RawPtr<HistoryItem>() const
 {
     return m_private.get();
 }