Have Frame::loader() return a reference

Source/core/svg/graphics/SVGImage.cpp

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. 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.
@@ skipping 44 matching lines @@
 SVGImage::SVGImage(ImageObserver* observer)
     : Image(observer)
 {
 }
 
 SVGImage::~SVGImage()
 {
     if (m_page) {
         // Store m_page in a local variable, clearing m_page, so that SVGImageChromeClient knows we're destructed.
         OwnPtr<Page> currentPage = m_page.release();
-        currentPage->mainFrame()->loader()->frameDetached(); // Break both the loader and view references to the frame
+        currentPage->mainFrame()->loader().frameDetached(); // Break both the loader and view references to the frame
     }
 
     // Verify that page teardown destroyed the Chrome
     ASSERT(!m_chromeClient || !m_chromeClient->image());
 }
 
 bool SVGImage::isInSVGImage(const Element* element)
 {
     ASSERT(element);
 
@@ skipping 308 matching lines @@
         // loaded by a top-level document.
         m_page = adoptPtr(new Page(pageClients));
         m_page->settings().setMediaEnabled(false);
         m_page->settings().setScriptEnabled(false);
         m_page->settings().setPluginsEnabled(false);
         m_page->settings().setAcceleratedCompositingEnabled(false);
 
         RefPtr<Frame> frame = Frame::create(m_page.get(), 0, dummyFrameLoaderClient);
         frame->setView(FrameView::create(frame.get()));
         frame->init();
-        FrameLoader* loader = frame->loader();
-        loader->forceSandboxFlags(SandboxAll);
+        FrameLoader& loader = frame->loader();
+        loader.forceSandboxFlags(SandboxAll);
 
         frame->view()->setScrollbarsSuppressed(true);
         frame->view()->setCanHaveScrollbars(false); // SVG Images will always synthesize a viewBox, if it's not available, and thus never see scrollbars.
         frame->view()->setTransparent(true); // SVG Images are transparent.
 
-        ASSERT(loader->activeDocumentLoader()); // DocumentLoader should have been created by frame->init().
-        DocumentWriter* writer = loader->activeDocumentLoader()->beginWriting("image/svg+xml", "UTF-8");
+        ASSERT(loader.activeDocumentLoader()); // DocumentLoader should have been created by frame->init().
+        DocumentWriter* writer = loader.activeDocumentLoader()->beginWriting("image/svg+xml", "UTF-8");
         writer->addData(data()->data(), data()->size());
-        loader->activeDocumentLoader()->endWriting(writer);
+        loader.activeDocumentLoader()->endWriting(writer);
         // Set the intrinsic size before a container size is available.
         m_intrinsicSize = containerSize();
     }
 
     return m_page;
 }
 
 String SVGImage::filenameExtension() const
 {
     return "svg";
 }
 
 }