Fix crash when using empty V8 strings with bindings (issue #1015).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk/cef3@1308 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
Add CefRenderHandler::OnScrollOffsetChanged callback (issue #889).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk/cef3@1309 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
Linux: Include the libffmpegsumo.so library in binary distributions (issue #1003).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk/cef3@1311 5089003a-bbd8-11dd-ad1f-f1f9622dbc98