static_assert -> assert

static_assert() is proving to be a pain with clang-cl, and further, each
of these replacement asserts() will probably just compile away
completely, just like static_assert() does.

Change-Id: I078fafbb0b96582a0f407dc7ef83bdc10f032f63
Reviewed-on: https://skia-review.googlesource.com/113840
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
1 file changed