Chrome Version: 13.0.782.20 OS Version: OS X 10.6.7 The FileApi specifies that Blob should have a method splice that takes a start and a length parameter. webkitSplice implements this as a start and an end parameter. The Blob API spec requires: Blob slice(in unsigned long long start, in unsigned long long length, optional DOMString contentType); http://www.w3.org/TR/FileAPI/#dfn-Blob The problematic function is in Blob.cpp: PassRefPtr<Blob> Blob::webkitSlice(long long start, long long end, const String& contentType) const
It looks like the WebKit is matching the working draft of the spec: http://dev.w3.org/2006/webapi/FileAPI/#dfn-Blob I think that's appropriate, so I'm closing this bug.