Bug 23019

As follow: <embed id="fc" src="http://801.tianya.cn/2008/12/sanguo/1224/640.swf"></embed> <script> var obj = document.getElementById("fc"); obj.style.display ="none"; </script> If the display equals to "none", rendererIsNeeded should return false. bool HTMLEmbedElement::rendererIsNeeded(RenderStyle* style) { if (isImageType()) return HTMLPlugInElement::rendererIsNeeded(style); Frame* frame = document()->frame(); if (!frame) return false; Node* p = parentNode(); if (p && p->hasTagName(objectTag)) { ASSERT(p->renderer()); return false; } - return true; + return HTMLElement::rendererIsNeeded(style); }