DragController.cpp:675: ASSERT(!image->filenameExtension().isEmpty()); We need to do the similar thing as in the fix for bug 32511: make PDFDocumentImage::filenameExtension() return a valid string.
Created attachment 50967 [details] Proposed Patch
Comment on attachment 50967 [details] Proposed Patch Looks good.
Committed as http://trac.webkit.org/changeset/56205.