The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chrome/ios_internal.git/+/1a2ae57448c3acd0d0b1ffe19208f20f4dcf906a

commit 1a2ae57448c3acd0d0b1ffe19208f20f4dcf906a
Author: stkhapugin <stkhapugin@google.com>
Date: Fri Dec 09 13:40:54 2016

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chrome/ios_internal.git/+/1a2ae57448c3acd0d0b1ffe19208f20f4dcf906a

commit 1a2ae57448c3acd0d0b1ffe19208f20f4dcf906a
Author: stkhapugin <stkhapugin@google.com>
Date: Fri Dec 09 13:40:54 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6f24b74e5e89616e42139a4e58d72848659caa1a

commit 6f24b74e5e89616e42139a4e58d72848659caa1a
Author: stkhapugin <stkhapugin@chromium.org>
Date: Fri Dec 09 17:28:19 2016

Moves include of objc_property_releaser out of a header.

Moves include of ojbc_property_releaser to the implementation file to
allow this to be included from ARC code.
Also moves ivars to the implementation file, per style guide.

BUG= 672510 
TEST=None

Review-Url: https://codereview.chromium.org/2561133002
Cr-Commit-Position: refs/heads/master@{#437575}

[modify] https://crrev.com/6f24b74e5e89616e42139a4e58d72848659caa1a/ios/chrome/browser/snapshots/snapshot_cache.h
[modify] https://crrev.com/6f24b74e5e89616e42139a4e58d72848659caa1a/ios/chrome/browser/snapshots/snapshot_cache.mm
[modify] https://crrev.com/6f24b74e5e89616e42139a4e58d72848659caa1a/ios/chrome/browser/snapshots/snapshot_cache_unittest.mm