[chromium] Turn off ScrollbarLayerChromium for Windows due to bad alpha values
Created attachment 152634 [details] Patch
This is intended to fix http://crbug.com/133944. That bug likely started happening due to my change in http://trac.webkit.org/changeset/120134 which turned on the use of ScrollbarLayerChromium even when the threaded compositor wasn't turned on. This method of drawing scrollbars is clearly not ready for all platforms yet.
Comment on attachment 152634 [details] Patch OK. r=me
Committed r122791: <http://trac.webkit.org/changeset/122791>