commit 0903d9b86a61912208efe95f24d0c79099ebf371
author jkarlin <jkarlin@chromium.org> Wed Jul 06 02:04:20 2016
committer Commit bot <commit-bot@chromium.org> Wed Jul 06 02:05:50 2016
tree 30297d71e75740a4e5500fc1833cb0cf623f5f88
parent 54c8d0a5e228aa1f3727b7268879fb543c3feca3

[CacheStorage] Keep deleted caches alive until last reference is gone

Currently once a cache is deleted via CacheStorage::Delete the associated
CacheStorageCache is closed and subsequent calls to it fail. This CL keeps
the CacheStorageCache alive, waiting to delete it from disk until after the
last cache handle has been dropped. This change is to conform with the
spec.

BUG=618646

Review-Url: https://codereview.chromium.org/2111243003
Cr-Commit-Position: refs/heads/master@{#403837}