GitLab

Replace ScopedObserver with base::ScopedObservation in /content/browser/storage_partition_impl_unittest.cc.

ScopedObserver is being deprecated in favor of two new classes:
- base::ScopedObservation for observers that only ever observe
  a single source.
- base::ScopedMultiSourceObservation for observers that do or may
  observe more than a single source.
This CL was uploaded by git cl split.

R=kinuko@chromium.org

Change-Id: I87a97adbc8cd1ad3e9bb6131289df74f9afb691a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2526167
Auto-Submit: Sigurður Ásgeirsson <siggi@chromium.org>
Commit-Queue: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825735}