GitLab

Some AppCache unit tests incorrectly use GURL() to get an URL with a
unique origin (different from other origins in the test). The way this
works may change in the future, so tests should use real origins
instead.

This CL also cleans up some lifecycle issues in the files touched by
the change.

Bug: 768460
Change-Id: Iaff5228f599209f3803c0374abcd53720e9906a9
Reviewed-on: https://chromium-review.googlesource.com/1174103Reviewed-by: Joshua Bell <jsbell@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582969}