Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp

Index: third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp b/third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp
index 2eef701ea6bdaeddc75be749f2fe783ea01eb9da..9deb027d131d86405ee46ca5e097925194e21c26 100644
--- a/third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp
@@ -154,7 +154,7 @@ bool CSSPrimitiveValue::colorIsDerivedFromElement() const
     }
 }
 
-using CSSTextCache = WillBePersistentHeapHashMap<RawPtrWillBeWeakMember<const CSSPrimitiveValue>, String>;
+using CSSTextCache = PersistentHeapHashMap<WeakMember<const CSSPrimitiveValue>, String>;
 
 static CSSTextCache& cssTextCache()
 {
@@ -289,7 +289,7 @@ void CSSPrimitiveValue::init(UnitType type)
     m_primitiveUnitType = static_cast<unsigned>(type);
 }
 
-void CSSPrimitiveValue::init(PassRefPtrWillBeRawPtr<CSSCalcValue> c)
+void CSSPrimitiveValue::init(RawPtr<CSSCalcValue> c)
 {
     init(UnitType::Calc);
     m_hasCachedCSSText = false;