Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/layout/LayoutMenuList.cpp

Index: third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp b/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
index 5767913e7c84d7024d34b27caf3b75b3712500d6..b8f9b0ca5be932c627f4fb33ff517249f95a11da 100644
--- a/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
@@ -165,7 +165,7 @@ void LayoutMenuList::styleDidChange(StyleDifference diff, const ComputedStyle* o
 void LayoutMenuList::updateOptionsWidth()
 {
     float maxOptionWidth = 0;
-    const WillBeHeapVector<RawPtrWillBeMember<HTMLElement>>& listItems = selectElement()->listItems();
+    const HeapVector<Member<HTMLElement>>& listItems = selectElement()->listItems();
     int size = listItems.size();
 
     for (int i = 0; i < size; ++i) {
@@ -220,7 +220,7 @@ void LayoutMenuList::updateText()
 void LayoutMenuList::setTextFromOption(int optionIndex)
 {
     HTMLSelectElement* select = selectElement();
-    const WillBeHeapVector<RawPtrWillBeMember<HTMLElement>>& listItems = select->listItems();
+    const HeapVector<Member<HTMLElement>>& listItems = select->listItems();
     const int size = listItems.size();
 
     String text = emptyString();