Remove shadowing of kMeasure in blink by using enum class

There are several kMeasure in blink and with -Wshadow enabled
there will be warnings about blink::kMeasure being shadowed.
This moves blink::kMeasure to
blink::NGTableCellChildLayoutPhase::kMeasure which avoid that
warning.

I'm interested in making blink -Wshadow clean because I think that
can reduce the risk of certain jumbo problems.

Bug: 923510
Change-Id: Ifac4ce2c9cf61ee7e7d72da4dc5055d4f490a5cc
Reviewed-on: https://chromium-review.googlesource.com/c/1484309
Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#635090}
2 files changed