www/chromium: update to 61.0.3163.79
- Add arm64 support [1]
- Fix segfault on i386 [2]
- Switch to USES=compiler:c++14-lang for devel/chromium-gn because chromium needs __builtin_add_overflow and friends to build.
PR: 220291 [1], 221266 [2]
Submitted by: Andrew [1]
Reported by: Patrick <doctorwhoguy@gmail.com> [2]
MFH: 2017Q3