commit d7447926b684013f332153de1bd502dd2bcecb25
author yosin <yosin@chromium.org> Tue Jul 26 06:30:20 2016
committer Commit bot <commit-bot@chromium.org> Tue Jul 26 06:31:37 2016
tree 59c25f15344a60215ac8fef6d777506f40818fcc
parent 7fff7c5c481c9a85495cef39be0b475dbde91da0

Make ExceptionState parameter of ContainerNode::querySelector() as an optional parameter

This patch makes |ExceptionState| parameter of |ContainerNode::querySelector()|
as an optional parameter to reduce source code size for improving code
readability and ease of writing tests, since there are lots of call of
|querySelector()| with |ASSERT_NO_EXCEPTION| in Blink unit tests.

BUG=n/a
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2178243002
Cr-Commit-Position: refs/heads/master@{#407723}