Omnibox: Don't Autocomplete Previously-Issued Search Queries

Omnibox: Don't Autocomplete Previously-Issued Search Queries

If I type an exact query that I issued before, SearchProvider shouldn't
offer an extension to the autocompletion, even if that I issued that longer
query more recently.  This is counter to user's expectations: if I issued
the query before and type it again and hit enter, I should get that query.

I do not plan to bother running an experiment for this change.

BUG=246411
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=283836

[Mark P, 2014-07-15 19:54:26]

This is straightforward.  Please tell me if you have any concerns.

--mark

[Peter Kasting, 2014-07-15 21:36:06]

LGTM

[Mark P, 2014-07-15 21:49:38]

The CQ bit was checked by mpearson@chromium.org

[commit-bot: I haz the power, 2014-07-15 21:51:11]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mpearson@chromium.org/397723003/20001

[commit-bot: I haz the power, 2014-07-16 06:09:27]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)

[commit-bot: I haz the power, 2014-07-16 06:29:08]

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

[commit-bot: I haz the power, 2014-07-16 06:29:09]

Try jobs failed on following builders:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)

[Mark P, 2014-07-17 19:04:48]

The CQ bit was checked by mpearson@chromium.org

[commit-bot: I haz the power, 2014-07-17 19:11:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mpearson@chromium.org/397723003/20001

[commit-bot: I haz the power, 2014-07-17 19:18:57]

Change committed as 283836