[Android] Prevent IME from hiding text handles if selection not editable

[Android] Prevent IME from hiding text handles if selection not editable

Prevent hardware keyboard events from hiding text handles if the events
are not dispatched to an editable region. This allows seamless arrow key
navigation of the page while a (non-editable) selection is active.

BUG=409778
Committed: https://crrev.com/02399778922b0791d5df14e140a2c9ca1a37847e
Cr-Commit-Position: refs/heads/master@{#294251}

[jdduke (slow), 2014-09-10 21:01:15]

jdduke@chromium.org changed reviewers:
+ aurimas@chromium.org

[jdduke (slow), 2014-09-10 21:01:16]

aurimas@: PTAL, thanks.

[aurimas (slooooooooow), 2014-09-10 21:05:37]

lgtm

[aurimas (slooooooooow), 2014-09-10 21:05:38]

lgtm

lgtm

[jdduke (slow), 2014-09-10 21:12:16]

The CQ bit was checked by jdduke@chromium.org

[commit-bot: I haz the power, 2014-09-10 21:15:42]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jdduke@chromium.org/560963002/20001

[commit-bot: I haz the power, 2014-09-10 23:04:30]

Committed patchset #2 (id:20001) as 4921a6dca3627a50a6b972d8425f763055c3e9c6

[commit-bot: I haz the power, 2014-09-10 23:13:51]

Patchset 2 (id:??) landed as
https://crrev.com/02399778922b0791d5df14e140a2c9ca1a37847e
Cr-Commit-Position: refs/heads/master@{#294251}