tree b35f7ce55607d466e8b3087db5f66c5ce5ff92ea
parent 303a529e9fe182b00fb4a105597d43c9f4eedb79
author Martin Hibdon <mhibdon@google.com> 1412979198 -0700
committer Martin Hibdon <mhibdon@google.com> 1413236765 -0700

If and account can't be loaded, do not perform an operation

b/17939382
Now, all operations take an Account, rather than an
accountId. The account must be loaded prior to performing
the operation. If it cannot be for some reason, we won't
even start. This solves the problem of calling syncStart(),
and then being unable to call syncEnd() because we don't
have an account object.
I think this could still be cleaner. I'd rather not pass
the account in the constructor, and instead set it in
doOperation(). That's too big of a change for right now
though, maybe after the next release.

Change-Id: I460b7a55e545a5822d6424e5db9b344d50a55fa4