tree a17cade6d360e789c464c0aaedd79b3b7f8f6b3f
parent b866618ae55f703505566311a20c1b8db4406a01
author Gabriel Schine <thatguy@google.com> 1542161338 -0800
committer Gabe Schine <thatguy@google.com> 1545439647 +0000

[sessionmgr][refactor] Add barebones StoryModel*

... and associated tests.  This includes implementations for:
* StoryModel table
* StoryModelMutation union
* StoryModelOwner
* StoryMutator
* StoryObserver

... and an interface for StoryModelStorage (what will ultimately
have a Ledger-backed implementation).

TEST=story_model_owner_unittest,apply_commands_unittest
MF-88 #comment [sessionmgr][refactor] Add barebones StoryModel*

Change-Id: I6daf15afad17a18e18a62efdd8e4d8cdb757c3f9