NQE: Record the main frame metrics at transaction start

NQE: Record the main frame metrics at transaction start

In network quality estimator (NQE), record the main frame metrics at the
beginning of transaction start, instead of when the response headers have
been received for the main frame.

BUG=691798
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester

Review-Url: https://codereview.chromium.org/2698913006
Cr-Commit-Position: refs/heads/master@{#451400}
Committed: https://chromium.googlesource.com/chromium/src/+/c3d164f6e807c5f9669ceb4ba213475d6072d626

[tbansal1, 2017-02-17 18:37:54]

tbansal@chromium.org changed reviewers:
+ ryansturm@chromium.org

[tbansal1, 2017-02-17 18:37:55]

ryansturm: ptal. thanks.

[tbansal1, 2017-02-17 18:38:06]

The CQ bit was checked by tbansal@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-02-17 18:38:35]

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

[RyanSturm, 2017-02-17 19:26:31]

lgtm

[commit-bot: I haz the power, 2017-02-17 19:50:59]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-17 19:51:01]

Dry run: Try jobs failed on following builders:
  win_chromium_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[tbansal1, 2017-02-17 21:29:00]

The CQ bit was checked by tbansal@chromium.org

[commit-bot: I haz the power, 2017-02-17 21:30:02]

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, 2017-02-17 23:41:33]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1487366940471360,
"parent_rev": "3d2b854663e325f0618ff313a4c58ff20e959891", "commit_rev":
"c3d164f6e807c5f9669ceb4ba213475d6072d626"}

[commit-bot: I haz the power, 2017-02-17 23:43:00]

Description was changed from

==========
NQE: Record the main frame metrics at transaction start

In network quality estimator (NQE), record the main frame metrics at the
beginning of transaction start, instead of when the response headers have
been received for the main frame.

BUG=691798
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
==========

to

==========
NQE: Record the main frame metrics at transaction start

In network quality estimator (NQE), record the main frame metrics at the
beginning of transaction start, instead of when the response headers have
been received for the main frame.

BUG=691798
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester

Review-Url: https://codereview.chromium.org/2698913006
Cr-Commit-Position: refs/heads/master@{#451400}
Committed:
https://chromium.googlesource.com/chromium/src/+/c3d164f6e807c5f9669ceb4ba213...
==========

[commit-bot: I haz the power, 2017-02-17 23:43:01]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/c3d164f6e807c5f9669ceb4ba213...