[Search] Identity check for New Tab Page should use canonicalized form

[Search] Identity check for New Tab Page should use canonicalized form

Was causing a bug where identities were slightly different.

BUG=453792
Committed: https://crrev.com/ed8d517fc97a8b0c3542669279b0482727255a32
Cr-Commit-Position: refs/heads/master@{#313955}

[Mathieu, 2015-01-30 13:28:03]

mathp@chromium.org changed reviewers:
+ kmadhusu@chromium.org, rogerta@chromium.org

[Mathieu, 2015-01-30 13:28:20]

Hello, 

Please have a look!

[beaudoin, 2015-01-30 13:50:39]

beaudoin@chromium.org changed reviewers:
+ beaudoin@chromium.org

[beaudoin, 2015-01-30 13:50:39]

lgtm

Drive by.

[kmadhusu, 2015-01-30 17:53:45]

lgtm

[Mathieu, 2015-01-30 17:59:04]

The CQ bit was checked by mathp@chromium.org

[commit-bot: I haz the power, 2015-01-30 17:59:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/864223006/1

[Roger Tawa OOO till Jul 10th, 2015-01-30 18:08:36]

lgtm

[commit-bot: I haz the power, 2015-01-30 19:04:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-30 19:05:40]

Patchset 1 (id:??) landed as
https://crrev.com/ed8d517fc97a8b0c3542669279b0482727255a32
Cr-Commit-Position: refs/heads/master@{#313955}