Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/CSSStyleDeclaration.h

Index: third_party/WebKit/Source/core/css/CSSStyleDeclaration.h
diff --git a/third_party/WebKit/Source/core/css/CSSStyleDeclaration.h b/third_party/WebKit/Source/core/css/CSSStyleDeclaration.h
index 808fc944b0205ab9c9af9731ff9265d14a8286fb..3e0ba1c50769034d2fa97a2387ce33d36595934e 100644
--- a/third_party/WebKit/Source/core/css/CSSStyleDeclaration.h
+++ b/third_party/WebKit/Source/core/css/CSSStyleDeclaration.h
@@ -35,9 +35,9 @@ class CSSValue;
 class ExceptionState;
 class MutableStylePropertySet;
 
-class CORE_EXPORT CSSStyleDeclaration : public NoBaseWillBeGarbageCollectedFinalized<CSSStyleDeclaration>, public ScriptWrappable {
+class CORE_EXPORT CSSStyleDeclaration : public GarbageCollectedFinalized<CSSStyleDeclaration>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
-    WTF_MAKE_NONCOPYABLE(CSSStyleDeclaration); USING_FAST_MALLOC_WILL_BE_REMOVED(CSSStyleDeclaration);
+    WTF_MAKE_NONCOPYABLE(CSSStyleDeclaration);
 public:
     virtual ~CSSStyleDeclaration() { }
 
@@ -69,7 +69,7 @@ public:
     // CSSPropertyID versions of the CSSOM functions to support bindings and editing.
     // Use the non-virtual methods in the concrete subclasses when possible.
     // The CSSValue returned by this function should not be exposed to the web as it may be used by multiple documents at the same time.
-    virtual PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) = 0;
+    virtual RawPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) = 0;
     virtual String getPropertyValueInternal(CSSPropertyID) = 0;
     virtual void setPropertyInternal(CSSPropertyID, const String& propertyValue, const String& value, bool important, ExceptionState&) = 0;