www/chromium: unbreak against ICU 58.1

components/url_formatter/url_formatter.cc:454:2: error: "Update aspirational_scripts per Unicode 9.0"
^
third_party/WebKit/Source/platform/text/TextBreakIterator.cpp:182:1: error: static_assert failed "breakAllLineBreakClassTable should be consistent"
static_assert(WTF_ARRAY_LENGTH(breakAllLineBreakClassTable) == U_LB_COUNT, "breakAllLineBreakClassTable should be consistent");
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PR: 214536
Submitted by: cpm (based on)
Obtained from: upstream
Approved by: portmgr blanket