[Devtools] Clear cache before running the test

[Devtools] Clear cache before running the test

This should help reducing the flakiness of this test, which is currently ~65%:
http://test-results.appspot.com/flakiness/dir/http/tests/inspector/network. The
text diff shows that actual number of items that are cached is different from
the expected: https://justpaste.it/11bq3.

R=allada@chromium.org
BUG=673378, 678486
patch from issue 2570553002 at patchset 180001 (http://crrev.com/2570553002#ps180001)

Review-Url: https://codereview.chromium.org/2620793002
Cr-Commit-Position: refs/heads/master@{#442663}
Committed: https://chromium.googlesource.com/chromium/src/+/1b1f643260924f93e19015e44ac61c97190e64b0

[allada, 2017-01-09 23:47:45]

allada@chromium.org changed reviewers:
+ dgozman@chromium.org, luoe@chromium.org, sergiyb@chromium.org
- allada@chromium.org

[allada, 2017-01-09 23:47:46]

PTL.

sergiyb@ This didnt upload last time because dgozman@ sent a patch a couple
weeks ago that changed the clear cache to a promise.

[Sergiy Byelozyorov, 2017-01-10 08:01:55]

lgtm

[Sergiy Byelozyorov, 2017-01-10 08:04:23]

On 2017/01/09 23:47:46, allada wrote:
> PTL.
> 
> sergiyb@ This didnt upload last time because dgozman@ sent a patch a couple
> weeks ago that changed the clear cache to a promise.

That explains why the test did timeout on buildbot and didn't on my machine. I
was probably using a stale checkout without dgozman's changes.

[allada, 2017-01-10 18:25:56]

The CQ bit was checked by allada@chromium.org

[commit-bot: I haz the power, 2017-01-10 18:26:17]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-10 19:48:27]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484072756860080, "parent_rev":
"69350f73e4ed47dac12cb087ee4bb6ec64a12a2b", "commit_rev":
"1b1f643260924f93e19015e44ac61c97190e64b0"}

[commit-bot: I haz the power, 2017-01-10 19:48:56]

Description was changed from

==========
[Devtools] Clear cache before running the test

This should help reducing the flakiness of this test, which is currently ~65%:
http://test-results.appspot.com/flakiness/dir/http/tests/inspector/network. The
text diff shows that actual number of items that are cached is different from
the expected: https://justpaste.it/11bq3.

R=allada@chromium.org
BUG=673378,678486

patch from issue 2570553002 at patchset 180001
(http://crrev.com/2570553002#ps180001)
==========

to

==========
[Devtools] Clear cache before running the test

This should help reducing the flakiness of this test, which is currently ~65%:
http://test-results.appspot.com/flakiness/dir/http/tests/inspector/network. The
text diff shows that actual number of items that are cached is different from
the expected: https://justpaste.it/11bq3.

R=allada@chromium.org
BUG=673378,678486

patch from issue 2570553002 at patchset 180001
(http://crrev.com/2570553002#ps180001)

Review-Url: https://codereview.chromium.org/2620793002
Cr-Commit-Position: refs/heads/master@{#442663}
Committed:
https://chromium.googlesource.com/chromium/src/+/1b1f643260924f93e19015e44ac6...
==========

[commit-bot: I haz the power, 2017-01-10 19:48:57]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1b1f643260924f93e19015e44ac6...