Move and rename RenderReplaced and RenderHTMLCanvas to Layout{Replaced,HTMLCanvas}.

Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 766 matching lines @@
 
     RenderBox* contentBox = embeddedContentBox();
     if (!contentBox)
         return;
 
     RenderSVGRoot* svgRoot = toRenderSVGRoot(contentBox);
     if (svgRoot->everHadLayout() && !svgRoot->needsLayout())
         return;
 
     // If the embedded SVG document appears the first time, the ownerRenderer has already finished
-    // layout without knowing about the existence of the embedded SVG document, because RenderReplaced
+    // layout without knowing about the existence of the embedded SVG document, because LayoutReplaced
     // embeddedContentBox() returns 0, as long as the embedded document isn't loaded yet. Before
     // bothering to lay out the SVG document, mark the ownerRenderer needing layout and ask its
     // FrameView for a layout. After that the RenderEmbeddedObject (ownerRenderer) carries the
     // correct size, which RenderSVGRoot::computeReplacedLogicalWidth/Height rely on, when laying
     // out for the first time, or when the RenderSVGRoot size has changed dynamically (eg. via <script>).
     RefPtrWillBeRawPtr<FrameView> frameView = ownerRenderer->frame()->view();
 
     // Mark the owner renderer as needing layout.
     ownerRenderer->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation();
 
@@ skipping 3253 matching lines @@
 {
     Settings* settings = frame().settings();
     if (!settings || !settings->rootLayerScrolls())
         return this;
 
     RenderView* renderView = this->renderView();
     return renderView ? renderView->scrollableArea() : nullptr;
 }
 
 } // namespace blink