Fix invalid suggestion window position on ChromeOS and Windwos.

Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012
Committed: https://crrev.com/14f15f11744445a7adb34030719afeb41a9432d0
Cr-Commit-Position: refs/heads/master@{#418491}

[Seigo Nonaka, 2016-09-13 10:29:32]

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

[commit-bot: I haz the power, 2016-09-13 10:29:46]

Dry run: 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, 2016-09-13 11:13:52]

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

[commit-bot: I haz the power, 2016-09-13 11:13:53]

Dry run: This issue passed the CQ dry run.

[Seigo Nonaka, 2016-09-13 16:30:32]

Description was changed from

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of starting composition bounding box monitoring since we need
to keep monitoring after the showing ime is requested.

BUG=640012
==========

to

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012
==========

[Seigo Nonaka, 2016-09-13 16:34:02]

nona@chromium.org changed reviewers:
+ aelias@chromium.org

[Seigo Nonaka, 2016-09-13 16:34:03]

Hi Alex, could you kindly take a look?

Thank you.

[aelias_OOO_until_Jul13, 2016-09-13 18:17:58]

lgtm

[Seigo Nonaka, 2016-09-14 05:31:47]

The CQ bit was checked by nona@chromium.org

[commit-bot: I haz the power, 2016-09-14 05:32:01]

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, 2016-09-14 05:36:36]

Description was changed from

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012
==========

to

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012
==========

[commit-bot: I haz the power, 2016-09-14 05:36:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-14 05:38:36]

Description was changed from

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012
==========

to

==========
Fix invalid suggestion window position on ChromeOS and Windwos.

This is regression from
http://crrev.com/dac0c7af14c29c9d8509b775d5044e5448b6263b
The show_ime_if_needed is one shot message so we can't use it as a
trigger of monitoring composition bounding box, since we need
to keep monitoring during the text input session is active.

BUG=640012

Committed: https://crrev.com/14f15f11744445a7adb34030719afeb41a9432d0
Cr-Commit-Position: refs/heads/master@{#418491}
==========

[commit-bot: I haz the power, 2016-09-14 05:38:37]

Patchset 1 (id:??) landed as
https://crrev.com/14f15f11744445a7adb34030719afeb41a9432d0
Cr-Commit-Position: refs/heads/master@{#418491}