It's currently 0 0 auto. This changed in a recent F2F. The desire is for flex items to flex by default.
Note: The implications for omitted negative flex are still being discussed: http://wiki.csswg.org/topics/css3-flexbox-default-shrink-when-grow-is-0
Created attachment 145151 [details] Patch
Comment on attachment 145151 [details] Patch Rejecting attachment 145151 [details] from commit-queue. New failing tests: fast/multicol/span/clone-flexbox.html transitions/flex-transitions.html Full output: http://queues.webkit.org/results/12868356
Created attachment 145182 [details] Archive of layout-test-results from ec2-cq-02 The attached test failures were seen while running run-webkit-tests on the commit-queue. Bot: ec2-cq-02 Port: <class 'webkitpy.common.config.ports.ChromiumXVFBPort'> Platform: Linux-2.6.35-28-virtual-x86_64-with-Ubuntu-10.10-maverick
Created attachment 145195 [details] Patch for landing
The render tree results for fast/multicol/span/clone-flexbox.html might not be exactly correct for some platforms. I tried to guess the size based on how it turned out in Chromium. Feel free to rebaseline if the size of the anonymous RenderBlock is wrong.
Comment on attachment 145195 [details] Patch for landing Clearing flags on attachment: 145195 Committed r119191: <http://trac.webkit.org/changeset/119191>
All reviewed patches have been landed. Closing bug.