Drag images should be anchored to the mouse location
<rdar://problem/30295261>
Created attachment 300326 [details] Patch
Created attachment 300329 [details] Patch
Created attachment 300348 [details] Fix Windows build
Created attachment 300436 [details] Actually fix Windows build
Comment on attachment 300436 [details] Actually fix Windows build Looks good to me.
Created attachment 300448 [details] Patch for landing
Comment on attachment 300448 [details] Patch for landing Clearing flags on attachment: 300448 Committed r211597: <http://trac.webkit.org/changeset/211597>