Created attachment 39718 [details] Testcase When running a hardware-accelerated opacity transition on an inline, we hit an assertion at: ASSERTION FAILED: !object || object->isBox() (/Volumes/InternalData/Development/webkit/OpenSource/WebCore/rendering/RenderBox.h:382 WebCore::RenderBox* WebCore::toRenderBox(WebCore::RenderObject*))
Created attachment 39719 [details] Patch
Comment on attachment 39719 [details] Patch r=me, although a comment in the code about why an empty size is being passed in might be helpful.
I added a comment. http://trac.webkit.org/changeset/48489