Have Element::ensureMutableInlineStyle() return a reference

Source/core/page/PageSerializer.cpp

 /*
  * Copyright (C) 2011 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 258 matching lines @@
         ASSERT(styleSheet->ownerDocument());
         Document& document = *styleSheet->ownerDocument();
         // Some rules have resources associated with them that we need to retrieve.
         if (rule->type() == CSSRule::IMPORT_RULE) {
             CSSImportRule* importRule = toCSSImportRule(rule);
             KURL importURL = document.completeURL(importRule->href());
             if (m_resourceURLs.contains(importURL))
                 continue;
             serializeCSSStyleSheet(importRule->styleSheet(), importURL);
         } else if (rule->type() == CSSRule::FONT_FACE_RULE) {
-            retrieveResourcesForProperties(toCSSFontFaceRule(rule)->styleRule()->properties(), document);
+            retrieveResourcesForProperties(&toCSSFontFaceRule(rule)->styleRule()->properties(), document);
         } else if (rule->type() == CSSRule::STYLE_RULE) {
-            retrieveResourcesForProperties(toCSSStyleRule(rule)->styleRule()->properties(), document);
+            retrieveResourcesForProperties(&toCSSStyleRule(rule)->styleRule()->properties(), document);
         }
     }
 
     if (url.isValid() && !m_resourceURLs.contains(url)) {
         // FIXME: We should check whether a charset has been specified and if none was found add one.
         WTF::TextEncoding textEncoding(styleSheet->contents()->charset());
         ASSERT(textEncoding.isValid());
         String textString = cssText.toString();
         CString text = textEncoding.normalizeAndEncode(textString, WTF::EntitiesForUnencodables);
         m_resources->append(SerializedResource(url, String("text/css"), SharedBuffer::create(text.data(), text.length())));
@@ skipping 88 matching lines @@
     if (iter != m_blankFrameURLs.end())
         return iter->value;
     String url = "wyciwyg://frame/" + String::number(m_blankFrameCounter++);
     KURL fakeURL(ParsedURLString, url);
     m_blankFrameURLs.add(frame, fakeURL);
 
     return fakeURL;
 }
 
 }