Explicit column breaks are currently not supported in the region based multicol implementation. Apart from simply making the implementation support it at all (which is trivial), we also have to make the column balancer aware of explicit breaks, which is a bit more work.
Created attachment 216302 [details] Test case
Created attachment 221122 [details] Patch
Comment on attachment 221122 [details] Patch Attachment 221122 [details] did not pass mac-wk2-ews (mac-wk2): Output: http://webkit-queues.appspot.com/results/6094733210288128
Created attachment 221126 [details] Patch
Comment on attachment 221126 [details] Patch r=me
Comment on attachment 221126 [details] Patch Rejecting attachment 221126 [details] from commit-queue. Failed to run "['/Volumes/Data/EWS/WebKit/Tools/Scripts/webkit-patch', '--status-host=webkit-queues.appspot.com', '--bot-id=webkit-cq-01', 'apply-attachment', '--no-update', '--non-interactive', 221126, '--port=mac']" exit_code: 2 cwd: /Volumes/Data/EWS/WebKit Last 500 characters of output: html patching file LayoutTests/fast/multicol/newmulticol/breaks-3-columns-3-expected.html patching file LayoutTests/fast/multicol/newmulticol/breaks-3-columns-3.html patching file LayoutTests/fast/multicol/newmulticol/fixed-height-fill-balance-2-expected.html patching file LayoutTests/fast/multicol/newmulticol/fixed-height-fill-balance-2.html Failed to run "[u'/Volumes/Data/EWS/WebKit/Tools/Scripts/svn-apply', '--force', '--reviewer', u'David Hyatt']" exit_code: 1 cwd: /Volumes/Data/EWS/WebKit Full output: http://webkit-queues.appspot.com/results/6444814115536896
Created attachment 221630 [details] Patch
Created attachment 221632 [details] Patch
Comment on attachment 221632 [details] Patch r=me
Comment on attachment 221632 [details] Patch Clearing flags on attachment: 221632 Committed r162366: <http://trac.webkit.org/changeset/162366>
All reviewed patches have been landed. Closing bug.