Change text selection iterator behaviour for non-editable empty selection

Change text selection iterator behaviour for non-editable empty selection

When the iterator that supports Image selection in editable fields is used
in cases where there is empty selection, it still returns some non-empty
character and hence makes a selection at empty areas too. Following commit:
https://codereview.chromium.org/1845193002/ is causing this behaviour.
So, in-order to maintain both use-cases, change iterator behavior to as it
was previously for non-editable cases.

BUG=623906
Committed: https://crrev.com/6e099723055362705266d6d4c70d4fdaa4c071c6
Cr-Commit-Position: refs/heads/master@{#402771}

[MaheshMachavolu, 2016-06-28 11:42:26]

mahesh.ma@samsung.com changed reviewers:
+ aelias@chromium.org, brettw@chromium.org, yosin@chromium.org

[MaheshMachavolu, 2016-06-28 11:42:27]

PTAL

[yosin_UTC9, 2016-06-29 00:55:54]

lgtm

[aelias_OOO_until_Jul13, 2016-06-29 03:08:22]

lgtm

[MaheshMachavolu, 2016-06-29 03:33:40]

mahesh.ma@samsung.com changed reviewers:
+ jam@chromium.org

[MaheshMachavolu, 2016-06-29 05:32:08]

The CQ bit was checked by mahesh.ma@samsung.com

[commit-bot: I haz the power, 2016-06-29 05:32:31]

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, 2016-06-29 07:49:08]

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

[commit-bot: I haz the power, 2016-06-29 07:49:09]

Try jobs failed on following builders:
  win_chromium_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[MaheshMachavolu, 2016-06-29 09:33:05]

The CQ bit was checked by mahesh.ma@samsung.com

[commit-bot: I haz the power, 2016-06-29 09:33:25]

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, 2016-06-29 10:51:58]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-29 10:53:25]

Description was changed from

==========
Change text selection iterator behaviour for non-editable empty selection

When the iterator that supports Image selection in editable fields is used
in cases where there is empty selection, it still returns some non-empty
character and hence makes a selection at empty areas too. Following commit:
https://codereview.chromium.org/1845193002/ is causing this behaviour.
So, in-order to maintain both use-cases, change iterator behavior to as it
was previously for non-editable cases.

BUG=623906
==========

to

==========
Change text selection iterator behaviour for non-editable empty selection

When the iterator that supports Image selection in editable fields is used
in cases where there is empty selection, it still returns some non-empty
character and hence makes a selection at empty areas too. Following commit:
https://codereview.chromium.org/1845193002/ is causing this behaviour.
So, in-order to maintain both use-cases, change iterator behavior to as it
was previously for non-editable cases.

BUG=623906

Committed: https://crrev.com/6e099723055362705266d6d4c70d4fdaa4c071c6
Cr-Commit-Position: refs/heads/master@{#402771}
==========

[commit-bot: I haz the power, 2016-06-29 10:53:26]

Patchset 2 (id:??) landed as
https://crrev.com/6e099723055362705266d6d4c70d4fdaa4c071c6
Cr-Commit-Position: refs/heads/master@{#402771}