Simplify detection of new, test-related RenderFrameHosts.

Simplify detection of new, test-related RenderFrameHosts.

Listening for WebContentsObserver::RenderFrameCreated is sufficient for
detecting new test frames - there is no need to also listen for
WebContentsObserver::RenderFrameHostChanged.

BUG=583485
Committed: https://crrev.com/bb36d01b4e5e0e4161fe5144acfc671566e0acba
Cr-Commit-Position: refs/heads/master@{#401143}

[Łukasz Anforowicz, 2016-06-21 22:00:09]

lukasza@chromium.org changed reviewers:
+ creis@chromium.org

[Łukasz Anforowicz, 2016-06-21 22:00:09]

Charlie, can you take a look please?  (if it looks okay, then feel free to push
it to CQ)

PS. I've run some local tests and they continue to pass + I've checked that
linux_site_isolation green tryjob covers layout tests.

[Charlie Reis, 2016-06-21 22:52:51]

Thanks for the cleanup and verifying it still works!  I agree that
RenderFrameCreated should be sufficient.

LGTM.

[Charlie Reis, 2016-06-21 22:52:56]

The CQ bit was checked by creis@chromium.org

[commit-bot: I haz the power, 2016-06-21 22:53:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2085023003/1

[commit-bot: I haz the power, 2016-06-22 00:04:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-22 00:05:32]

Description was changed from

==========
Simplify detection of new, test-related RenderFrameHosts.

Listening for WebContentsObserver::RenderFrameCreated is sufficient for
detecting new test frames - there is no need to also listen for
WebContentsObserver::RenderFrameHostChanged.

BUG=583485
==========

to

==========
Simplify detection of new, test-related RenderFrameHosts.

Listening for WebContentsObserver::RenderFrameCreated is sufficient for
detecting new test frames - there is no need to also listen for
WebContentsObserver::RenderFrameHostChanged.

BUG=583485

Committed: https://crrev.com/bb36d01b4e5e0e4161fe5144acfc671566e0acba
Cr-Commit-Position: refs/heads/master@{#401143}
==========

[commit-bot: I haz the power, 2016-06-22 00:05:33]

Patchset 1 (id:??) landed as
https://crrev.com/bb36d01b4e5e0e4161fe5144acfc671566e0acba
Cr-Commit-Position: refs/heads/master@{#401143}