Fix WebView not to hide soft keyboard on navigation

Fix WebView not to hide soft keyboard on navigation

We were calling ImeAdapter#reset() (now renamed as resetAndHideKeyboard)
whenever navigation occurred. This change was introduced in
https://codereview.chromium.org/1278593004 .
However, there are cases, e.g. email client using WebView, where we don't
want the behavior. (b/27547367)

We will still call resetAndHideKeyboard() when renderer process is gone
as a safety net for ImeThread feature, and hide keyboard through
updateKeyboardVisibility() function.

BUG=601707
Committed: https://crrev.com/cbd74f1402d7f3d87b032ea9ee1d4d65f6fcde8c
Cr-Commit-Position: refs/heads/master@{#395535}

[Changwan Ryu, 2016-05-23 06:03:45]

changwan@chromium.org changed reviewers:
+ aelias@chromium.org, tedchoc@chromium.org

[Ted C, 2016-05-23 18:35:00]

lgtm

[aelias_OOO_until_Jul13, 2016-05-23 20:04:41]

lgtm

[Changwan Ryu, 2016-05-24 04:58:55]

The CQ bit was checked by changwan@chromium.org

[commit-bot: I haz the power, 2016-05-24 04:59:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2001983002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2001983002/1

[commit-bot: I haz the power, 2016-05-24 06:56:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-24 06:57:52]

Description was changed from

==========
Fix WebView not to hide soft keyboard on navigation

We were calling ImeAdapter#reset() (now renamed as resetAndHideKeyboard)
whenever navigation occurred. This change was introduced in
https://codereview.chromium.org/1278593004 .
However, there are cases, e.g. email client using WebView, where we don't
want the behavior. (b/27547367)

We will still call resetAndHideKeyboard() when renderer process is gone
as a safety net for ImeThread feature, and hide keyboard through
updateKeyboardVisibility() function.

BUG=601707
==========

to

==========
Fix WebView not to hide soft keyboard on navigation

We were calling ImeAdapter#reset() (now renamed as resetAndHideKeyboard)
whenever navigation occurred. This change was introduced in
https://codereview.chromium.org/1278593004 .
However, there are cases, e.g. email client using WebView, where we don't
want the behavior. (b/27547367)

We will still call resetAndHideKeyboard() when renderer process is gone
as a safety net for ImeThread feature, and hide keyboard through
updateKeyboardVisibility() function.

BUG=601707

Committed: https://crrev.com/cbd74f1402d7f3d87b032ea9ee1d4d65f6fcde8c
Cr-Commit-Position: refs/heads/master@{#395535}
==========

[commit-bot: I haz the power, 2016-05-24 06:57:53]

Patchset 1 (id:??) landed as
https://crrev.com/cbd74f1402d7f3d87b032ea9ee1d4d65f6fcde8c
Cr-Commit-Position: refs/heads/master@{#395535}