tree f31a1f26a04618d666b4dcae40950843f934a585
parent a123f0184894073a8495bc0cf49b5c890781b289
author tsepez <tsepez@chromium.org> 1459376049 -0700
committer Commit bot <commit-bot@chromium.org> 1459376049 -0700

Use CFX_RetainPtr to ref count CFX_ByteString

This moves the reference counts from an ad-hoc mechanism
to being automatically tracked.

Also:
Make StringData::Create() always return non-null.
Add better ctors for StringData itself.
Consolidate copies into StringData methods.
Simplify the concat() code.
Rename/reorder some parameter names to be simpler.

Review URL: https://codereview.chromium.org/1810823002