Mac: Call makeFirstResponder:nil from windowDidResignKey: in cefclient to remove focus from the browser view when the window becomes inactive (issue #565).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk/cef1@1025 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
Windows: Display select filters based on the "accept" attribute for input type="file" (issue #791).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk/cef1@1027 5089003a-bbd8-11dd-ad1f-f1f9622dbc98