Make various gfx classes more amenable to use as compile-time constants.
Specifically, this means marking most constructors and simple accessors as
constexpr. It also means removing the explicit empty destructors, since that
can qualify as a nontrivial destructor and bung things up. (If we really want
to explicitly declare these, the right way would be to use "= default".)
This also adds some missing operators to the Insets classes. I needed one of
these, and the style guide says to overload all related operators when
overloading one.
BUG=none
TEST=none
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
R=danakj@chromium.org
Review URL: https://codereview.chromium.org/2051343002 .
Cr-Commit-Position: refs/heads/master@{#399815}
18 files changed
