Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)

[Takashi Toyoshima, 2016-06-01 07:21:10]

Description was changed from

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

to

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

[Takashi Toyoshima, 2016-06-01 07:21:10]

toyoshim@chromium.org changed reviewers:
+ bmcquade@chromium.org

[Takashi Toyoshima, 2016-06-01 07:21:53]

The CQ bit was checked by toyoshim@chromium.org

[commit-bot: I haz the power, 2016-06-01 07:22:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2031443002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2031443002/1

[commit-bot: I haz the power, 2016-06-01 07:22:11]

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

[commit-bot: I haz the power, 2016-06-01 07:22:12]

CLs for remote refs other than refs/pending/heads/master must contain NOTRY=true
and NOPRESUBMIT=true in order for the CQ to process them

[Takashi Toyoshima, 2016-06-01 07:25:37]

Description was changed from

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

to

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

[Takashi Toyoshima, 2016-06-01 07:25:48]

The CQ bit was checked by toyoshim@chromium.org

[commit-bot: I haz the power, 2016-06-01 07:26:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2031443002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2031443002/1

[commit-bot: I haz the power, 2016-06-01 07:27:37]

Description was changed from

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

to

==========
Add ReloadPageLoadMetricsObserver to have a metrics variant only reloads

To measure reload experiments impact, this change adds
ReloadPageLoadMetricsObserver to report TTFCP variants only for
reload-related page loadings.

BUG=607063
TBR=isherman@chromium.org, bmcquade@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2008233002
Cr-Commit-Position: refs/heads/master@{#396395}
(cherry picked from commit d056525caaa71451d25f6113895b376e47177f6e)
==========

[commit-bot: I haz the power, 2016-06-01 07:27:38]

Committed patchset #1 (id:1)