Paginated RenderViews with RL or LR progression don't handle percentages correctly. I just needed to add back code that was in place for the old columns.
Created attachment 235363 [details] Patch
Created attachment 235364 [details] Patch
Comment on attachment 235364 [details] Patch Can't it be a ref test?
Comment on attachment 235364 [details] Patch Attachment 235364 [details] did not pass mac-ews (mac): Output: http://webkit-queues.appspot.com/results/5226907327004672 New failing tests: fast/multicol/pagination/RightToLeft-max-width.html
Created attachment 235370 [details] Archive of layout-test-results from webkit-ews-03 for mac-mountainlion The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: webkit-ews-03 Port: mac-mountainlion Platform: Mac OS X 10.8.5
Comment on attachment 235364 [details] Patch Attachment 235364 [details] did not pass mac-ews (mac): Output: http://webkit-queues.appspot.com/results/4903620843667456 New failing tests: fast/multicol/pagination/RightToLeft-max-width.html
Created attachment 235377 [details] Archive of layout-test-results from webkit-ews-05 for mac-mountainlion The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: webkit-ews-05 Port: mac-mountainlion Platform: Mac OS X 10.8.5
Comment on attachment 235364 [details] Patch Attachment 235364 [details] did not pass mac-wk2-ews (mac-wk2): Output: http://webkit-queues.appspot.com/results/6587505721737216 New failing tests: fast/multicol/pagination/RightToLeft-max-width.html
Created attachment 235383 [details] Archive of layout-test-results from webkit-ews-11 for mac-mountainlion-wk2 The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews. Bot: webkit-ews-11 Port: mac-mountainlion-wk2 Platform: Mac OS X 10.8.5
Fixed in r171609.