Removed O(n!) traversal of selectors for selectorList.
When collectFeaturesFromSelector got a for-loop for tagHistory in [1], the
for-loop for tagHistory was kept in collectFeaturesFromSelectorList which
means we did n! visits of n sub-selectors in selectors like
:-webkit-any(.a.b.c).
[1] https://codereview.chromium.org/143653010
R=esprehn,chrishtr
BUG=335247
Review URL: https://codereview.chromium.org/172993002
git-svn-id: svn://svn.chromium.org/blink/trunk@167475 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
