Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/properties/SVGListPropertyTearOffHelper.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 26 matching lines @@
 #include "wtf/TypeTraits.h"
 
 namespace blink {
 
 template<typename ItemProperty>
 class ListItemPropertyTraits {
 public:
     typedef ItemProperty ItemPropertyType;
     typedef typename ItemPropertyType::TearOffType ItemTearOffType;
 
-    static PassRefPtr<ItemPropertyType> getValueForInsertionFromTearOff(PassRefPtr<ItemTearOffType> passNewItem, SVGElement* contextElement, const QualifiedName& attributeName)
+    static PassRefPtrWillBeRawPtr<ItemPropertyType> getValueForInsertionFromTearOff(PassRefPtrWillBeRawPtr<ItemTearOffType> passNewItem, SVGElement* contextElement, const QualifiedName& attributeName)
     {
-        RefPtr<ItemTearOffType> newItem = passNewItem;
+        RefPtrWillBeRawPtr<ItemTearOffType> newItem = passNewItem;
 
         // |newItem| is immutable, OR
         // |newItem| belongs to a SVGElement, but it does not belong to an animated list
         // (for example: "textElement.x.baseVal.appendItem(rectElement.width.baseVal)")
         if (newItem->isImmutable()
             || (newItem->contextElement() && !newItem->target()->ownerList())) {
             // We have to copy the incoming |newItem|,
             // Otherwise we'll end up having two tearoffs that operate on the same SVGProperty. Consider the example below:
             // SVGRectElements SVGAnimatedLength 'width' property baseVal points to the same tear off object
             // that's inserted into SVGTextElements SVGAnimatedLengthList 'x'. textElement.x.baseVal.getItem(0).value += 150 would
             // mutate the rectElement width _and_ the textElement x list. That's obviously wrong, take care of that.
             return newItem->target()->clone();
         }
 
         newItem->attachToSVGElementAttribute(contextElement, attributeName);
         return newItem->target();
     }
 
-    static PassRefPtr<ItemTearOffType> createTearOff(PassRefPtr<ItemPropertyType> value, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
+    static PassRefPtrWillBeRawPtr<ItemTearOffType> createTearOff(PassRefPtrWillBeRawPtr<ItemPropertyType> value, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
     {
         return ItemTearOffType::create(value, contextElement, propertyIsAnimVal, attributeName);
     }
 };
 
 template<typename Derived, typename ListProperty>
 class SVGListPropertyTearOffHelper : public SVGPropertyTearOff<ListProperty> {
 public:
     typedef ListProperty ListPropertyType;
     typedef typename ListPropertyType::ItemPropertyType ItemPropertyType;
@@ skipping 11 matching lines @@
     void clear(ExceptionState& exceptionState)
     {
         if (toDerived()->isImmutable()) {
             exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return;
         }
 
         toDerived()->target()->clear();
     }
 
-    PassRefPtr<ItemTearOffType> initialize(PassRefPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> initialize(PassRefPtrWillBeRawPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
     {
-        RefPtr<ItemTearOffType> item = passItem;
+        RefPtrWillBeRawPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
             exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return nullptr;
         }
 
         if (!item) {
             exceptionState.throwTypeError("Lists must be initialized with a valid item.");
             return nullptr;
         }
 
-        RefPtr<ItemPropertyType> value = toDerived()->target()->initialize(getValueForInsertionFromTearOff(item));
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->initialize(getValueForInsertionFromTearOff(item));
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
-    PassRefPtr<ItemTearOffType> getItem(unsigned long index, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> getItem(unsigned long index, ExceptionState& exceptionState)
     {
-        RefPtr<ItemPropertyType> value = toDerived()->target()->getItem(index, exceptionState);
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->getItem(index, exceptionState);
         return createItemTearOff(value.release());
     }
 
-    PassRefPtr<ItemTearOffType> insertItemBefore(PassRefPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> insertItemBefore(PassRefPtrWillBeRawPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
     {
-        RefPtr<ItemTearOffType> item = passItem;
+        RefPtrWillBeRawPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
             exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return nullptr;
         }
 
         if (!item) {
             exceptionState.throwTypeError("An invalid item cannot be inserted to a list.");
             return nullptr;
         }
 
-        RefPtr<ItemPropertyType> value = toDerived()->target()->insertItemBefore(getValueForInsertionFromTearOff(item), index);
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->insertItemBefore(getValueForInsertionFromTearOff(item), index);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
-    PassRefPtr<ItemTearOffType> replaceItem(PassRefPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> replaceItem(PassRefPtrWillBeRawPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
     {
-        RefPtr<ItemTearOffType> item = passItem;
+        RefPtrWillBeRawPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
             exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return nullptr;
         }
 
         if (!item) {
             exceptionState.throwTypeError("An invalid item cannot be replaced with an existing list item.");
             return nullptr;
         }
 
-        RefPtr<ItemPropertyType> value = toDerived()->target()->replaceItem(getValueForInsertionFromTearOff(item), index, exceptionState);
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->replaceItem(getValueForInsertionFromTearOff(item), index, exceptionState);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
-    bool anonymousIndexedSetter(unsigned index, PassRefPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
+    bool anonymousIndexedSetter(unsigned index, PassRefPtrWillBeRawPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
     {
         replaceItem(passItem, index, exceptionState);
         return true;
     }
 
-    PassRefPtr<ItemTearOffType> removeItem(unsigned long index, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> removeItem(unsigned long index, ExceptionState& exceptionState)
     {
-        RefPtr<ItemPropertyType> value = toDerived()->target()->removeItem(index, exceptionState);
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->removeItem(index, exceptionState);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
-    PassRefPtr<ItemTearOffType> appendItem(PassRefPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> appendItem(PassRefPtrWillBeRawPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
     {
-        RefPtr<ItemTearOffType> item = passItem;
+        RefPtrWillBeRawPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
             exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return nullptr;
         }
 
         if (!item) {
             exceptionState.throwTypeError("An invalid item cannot be appended to a list.");
             return nullptr;
         }
 
-        RefPtr<ItemPropertyType> value = toDerived()->target()->appendItem(getValueForInsertionFromTearOff(item));
+        RefPtrWillBeRawPtr<ItemPropertyType> value = toDerived()->target()->appendItem(getValueForInsertionFromTearOff(item));
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
 protected:
-    SVGListPropertyTearOffHelper(PassRefPtr<ListPropertyType> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
+    SVGListPropertyTearOffHelper(PassRefPtrWillBeRawPtr<ListPropertyType> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
         : SVGPropertyTearOff<ListPropertyType>(target, contextElement, propertyIsAnimVal, attributeName)
     {
     }
 
-    PassRefPtr<ItemPropertyType> getValueForInsertionFromTearOff(PassRefPtr<ItemTearOffType> passNewItem)
+    PassRefPtrWillBeRawPtr<ItemPropertyType> getValueForInsertionFromTearOff(PassRefPtrWillBeRawPtr<ItemTearOffType> passNewItem)
     {
         return ItemTraits::getValueForInsertionFromTearOff(passNewItem, toDerived()->contextElement(), toDerived()->attributeName());
     }
 
-    PassRefPtr<ItemTearOffType> createItemTearOff(PassRefPtr<ItemPropertyType> value)
+    PassRefPtrWillBeRawPtr<ItemTearOffType> createItemTearOff(PassRefPtrWillBeRawPtr<ItemPropertyType> value)
     {
         if (!value)
             return nullptr;
 
         if (value->ownerList() == toDerived()->target())
             return ItemTraits::createTearOff(value, toDerived()->contextElement(), toDerived()->propertyIsAnimVal(), toDerived()->attributeName());
 
         return ItemTraits::createTearOff(value, 0, PropertyIsNotAnimVal, QualifiedName::null());
     }
 
 private:
     Derived* toDerived() { return static_cast<Derived*>(this); }
 };
 
 }
 
 #endif // SVGListPropertyTearOffHelper_h