Fix for CookieStoreImpl and more tests around Cookie handling

CookieStoreImpl was not using the same key for retrieval as
for storage. It was working because of the fall-back
"domain" match.

Bug: https://code.google.com/p/android/issues/detail?id=193475
Bug: 25682357
Change-Id: I57767d29525cc8697965c5272a6f6d8410b327d1
4 files changed