There are some small repaint issues on Windows when the device scale factor != 1.
Created attachment 258614 [details] Patch
I also changed the line ending style of WebView.cpp to Unix-style, to avoid style errors.
Comment on attachment 258614 [details] Patch r=me
(In reply to comment #3) > Comment on attachment 258614 [details] > Patch > > r=me Thanks!
Committed r188215: <http://trac.webkit.org/changeset/188215>.