Oilpan: Move CSSStyleDeclaration and subclasses to the heap using transistion types.

Source/core/editing/ApplyStyleCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2008, 2009 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1483 matching lines @@
 
     if (m_styledInlineElement && addStyledElement == AddStyledElement)
         surroundNodeRangeWithElement(startNode, endNode, m_styledInlineElement->cloneElementWithoutChildren());
 }
 
 float ApplyStyleCommand::computedFontSize(Node* node)
 {
     if (!node)
         return 0;
 
-    RefPtr<CSSComputedStyleDeclaration> style = CSSComputedStyleDeclaration::create(node);
+    RefPtrWillBeRawPtr<CSSComputedStyleDeclaration> style = CSSComputedStyleDeclaration::create(node);
     if (!style)
         return 0;
 
     RefPtrWillBeRawPtr<CSSPrimitiveValue> value = static_pointer_cast<CSSPrimitiveValue>(style->getPropertyCSSValue(CSSPropertyFontSize));
     if (!value)
         return 0;
 
     return value->getFloatValue(CSSPrimitiveValue::CSS_PX);
 }
 
@@ skipping 27 matching lines @@
         String textToMove = nextText->data();
         insertTextIntoNode(childText, childText->length(), textToMove);
         removeNode(next);
         // don't move child node pointer. it may want to merge with more text nodes.
     }
 
     updateStartEnd(newStart, newEnd);
 }
 
 }