Summary:
In a future patch we will want to pass the uniondatapackstore around to other
objects who will contribute to the lifetime. Let's change it to a shared_ptr so
that becomes easy.
Let's also make the destructor virtual, so we can pass different types of stores
around and have them be destructed correctly.
Test Plan: Ran the tests
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4603893
Signature: t1:4603893:1487847173:2fc3505032ea8c30cf9e0f76ac4e75d64513d87d
Summary:
A future patch will want to import just the cstore py headers into
py-ctreemanifest, so let's move those out to their own header file.
Test Plan: Ran the tests
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4571320
Signature: t1:4571320:1487774077:64b4c5053b223f075a1c9f73ddcd92bd73b53e23
