tree 2f9eac300b28134e79f382d6debb334f1b200da8
parent 408b460ef5085e2eea8b95477f23f89d133d5faf
author Casey Dahlin <sadmac@google.com> 1552438252 -0700
committer Christopher Ferris <cferris@google.com> 1560280158 -0700

Internalize subclasses of Memory

There are many subclasses of the Memory class and the overwhelming
majority of them don't need to be exposed externally. We move all of
them to internal headers except MemoryOfflineBuffer, which moves to a
separate header. This dramatically reduces the exposed API surface and
makes the code more modular.

Also, remove the Offline code from libbacktrace. It's not used any where.

Test: Unit tests pass, clean tree still builds
Change-Id: I55dacdf080daba0bfe65c1ad53a4b326bb482e83