r161770 added a template alias, so the minimum GCC version is 4.7 now.
Created attachment 221266 [details] patch
I'm also planning to remove COMPILER_SUPPORTS ifdefs for the now unsupported GCC versions later.
Comment on attachment 221266 [details] patch Everybody agreed on webkit-dev about it, so let's go, r=me.
Comment on attachment 221266 [details] patch Clearing flags on attachment: 221266 Committed r162126: <http://trac.webkit.org/changeset/162126>
All reviewed patches have been landed. Closing bug.