tree cc9aa9febbaacecdc603774d6aeaee038eb00d32
parent 38628f3fff6dd870248889b04eaddaafb23ca4ac
author Ben Wagner <bungeman@google.com> 1526680008 -0400
committer Ben Wagner <bungeman@google.com> 1526911662 +0000

Clean up Bitmap allocation size computation.

In addition to making this do what is intended in both debug and
release, this removes some of the last uses of sk_64_isS32 and
sk_64_asS32 so that they can be removed.

Test: refactoring CL. Existing unit tests still pass.
Change-Id: I4cd9fb124719f8e7e23db6bf268cbda64c29d283