Set ComputedStyle on Node and use that in buildOwnLayout()

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 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 74 matching lines @@
 
 void HTMLVideoElement::attach(const AttachContext& context)
 {
     HTMLMediaElement::attach(context);
 
     updateDisplayState();
     if (shouldDisplayPosterImage()) {
         if (!m_imageLoader)
             m_imageLoader = HTMLImageLoader::create(this);
         m_imageLoader->updateFromElement();
-        if (layoutObject())
+        if (hasLayoutObject())
             toLayoutImage(layoutObject())->imageResource()->setImageResource(m_imageLoader->image());
     }
 }
 
 void HTMLVideoElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
 {
     if (name == widthAttr)
         addHTMLLengthToStyle(style, CSSPropertyWidth, value);
     else if (name == heightAttr)
         addHTMLLengthToStyle(style, CSSPropertyHeight, value);
@@ skipping 16 matching lines @@
         if (getDisplayMode() < Video || !hasAvailableVideoFrame()) {
             // Force a poster recalc by setting m_displayMode to Unknown directly before calling updateDisplayState.
             HTMLMediaElement::setDisplayMode(Unknown);
             updateDisplayState();
         }
         if (!posterImageURL().isEmpty()) {
             if (!m_imageLoader)
                 m_imageLoader = HTMLImageLoader::create(this);
             m_imageLoader->updateFromElement(ImageLoader::UpdateIgnorePreviousError);
         } else {
-            if (layoutObject())
+            if (hasLayoutObject())
                 toLayoutImage(layoutObject())->imageResource()->setImageResource(0);
         }
         // Notify the player when the poster image URL changes.
         if (webMediaPlayer())
             webMediaPlayer()->setPoster(posterImageURL());
     } else {
         HTMLMediaElement::parseAttribute(name, oldValue, value);
     }
 }
 
@@ skipping 196 matching lines @@
         return ScriptPromise();
     }
     if (!sw || !sh) {
         exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
         return ScriptPromise();
     }
     return ImageBitmapSource::fulfillImageBitmap(scriptState, ImageBitmap::create(this, IntRect(sx, sy, sw, sh), eventTarget.toLocalDOMWindow()->document(), options));
 }
 
 } // namespace blink