Files app: Handle chrome.runtime.lastError for chrome.storage API calls.

Files app: Handle chrome.runtime.lastError for chrome.storage API calls.

BUG=671080, 674434
TEST=manually tested by modifying chrome.storage API to return errors and
confirming that Files app works properly with default options.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2578863003
Cr-Commit-Position: refs/heads/master@{#438806}
(cherry picked from commit 26defffaca3b257fae0f625d04fc14724fc71682)

Committed: https://chromium.googlesource.com/chromium/src/+/e8abe66c74b57ced730aa2977f93fdd59d7c4c72

[fukino, 2016-12-19 08:22:56]

Description was changed from

==========
Files app: Handle chrome.runtime.lastError for chrome.storage API calls.

BUG=671080,674434
TEST=manually tested by modifying chrome.storage API to return errors and
confirming that Files app works properly with default options.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2578863003
Cr-Commit-Position: refs/heads/master@{#438806}
(cherry picked from commit 26defffaca3b257fae0f625d04fc14724fc71682)
==========

to

==========
Files app: Handle chrome.runtime.lastError for chrome.storage API calls.

BUG=671080,674434
TEST=manually tested by modifying chrome.storage API to return errors and
confirming that Files app works properly with default options.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2578863003
Cr-Commit-Position: refs/heads/master@{#438806}
(cherry picked from commit 26defffaca3b257fae0f625d04fc14724fc71682)

Committed:
https://chromium.googlesource.com/chromium/src/+/e8abe66c74b57ced730aa2977f93...
==========

[fukino, 2016-12-19 08:22:58]

Committed patchset #1 (id:1) manually as
e8abe66c74b57ced730aa2977f93fdd59d7c4c72.