[DevTools] Allow hide timeout in popover be longer than show timeout

[DevTools] Allow hide timeout in popover be longer than show timeout

This is useful for timeline overview. To support long hide timeout
we should hide immediately before showing new popover and cancel the
timeout. If we don't show the new popover, old one will be hidden
after a long timeout, which makes it easier to reach popover with mouse.

BUG=704424
Review-Url: https://codereview.chromium.org/2779853002
Cr-Commit-Position: refs/heads/master@{#459978}
Committed: https://chromium.googlesource.com/chromium/src/+/9d8f7b92656f41598fe2ce4e7cc1979fc339ebc4

[dgozman, 2017-03-27 23:07:00]

dgozman@chromium.org changed reviewers:
+ lushnikov@chromium.org

[dgozman, 2017-03-27 23:07:00]

Could you please take a look?

[lushnikov, 2017-03-27 23:57:59]

lgtm

[dgozman, 2017-03-28 00:11:25]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2017-03-28 00:11:54]

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, 2017-03-28 01:53:28]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490659885661470, "parent_rev":
"5a87a8c9df596dfa99c875bb76d95bbb53e5b26e", "commit_rev":
"9d8f7b92656f41598fe2ce4e7cc1979fc339ebc4"}

[commit-bot: I haz the power, 2017-03-28 01:54:09]

Description was changed from

==========
[DevTools] Allow hide timeout in popover be longer than show timeout

This is useful for timeline overview. To support long hide timeout
we should hide immediately before showing new popover and cancel the
timeout. If we don't show the new popover, old one will be hidden
after a long timeout, which makes it easier to reach popover with mouse.

BUG=704424
==========

to

==========
[DevTools] Allow hide timeout in popover be longer than show timeout

This is useful for timeline overview. To support long hide timeout
we should hide immediately before showing new popover and cancel the
timeout. If we don't show the new popover, old one will be hidden
after a long timeout, which makes it easier to reach popover with mouse.

BUG=704424

Review-Url: https://codereview.chromium.org/2779853002
Cr-Commit-Position: refs/heads/master@{#459978}
Committed:
https://chromium.googlesource.com/chromium/src/+/9d8f7b92656f41598fe2ce4e7cc1...
==========

[commit-bot: I haz the power, 2017-03-28 01:54:10]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9d8f7b92656f41598fe2ce4e7cc1...