AccessibilityTabModelWrapper should call notifyDataSetChanged() when newTab is created

AccessibilityTabModelWrapper should call notifyDataSetChanged() when newTab is created

ChromeShellTabModelSelector should notify the listeners when a new tab
is created.

And ChangeListeners must not be deregistered when TabManager
is detached from window because new tab can also be created when the
TabManager is detached.

BUG=436824
Committed: https://crrev.com/9548243fca6a3524694de5683a4486d70837d968
Cr-Commit-Position: refs/heads/master@{#305840}

[patro, 2014-11-26 10:35:33]

Kindly Review

Thanks
Shyam Patro

[patro, 2014-11-26 10:36:09]

behara.ms@samsung.com changed reviewers:
+ dtrainor@chromium.org

[patro, 2014-11-26 10:36:09]

Kindly Review

Thanks
Shyam Patro

[patro, 2014-11-26 10:54:35]

behara.ms@samsung.com changed reviewers:
+ peter@chromium.org

[David Trainor- moved to gerrit, 2014-11-26 17:49:53]

lgtm

[dmazzoni, 2014-11-26 17:53:11]

dmazzoni@chromium.org changed reviewers:
+ clholgat@chromium.org, dmazzoni@chromium.org
- peter@chromium.org

[dmazzoni, 2014-11-26 17:53:12]

Seems right, but dtrainor is a better reviewer for this.

+clholgat as FYI

[dmazzoni, 2014-11-26 17:53:42]

The CQ bit was checked by dmazzoni@chromium.org

[commit-bot: I haz the power, 2014-11-26 17:54:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/761723002/1

[commit-bot: I haz the power, 2014-11-26 18:34:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-26 18:35:54]

Patchset 1 (id:??) landed as
https://crrev.com/9548243fca6a3524694de5683a4486d70837d968
Cr-Commit-Position: refs/heads/master@{#305840}