Move InMemoryURLIndex outside of history namespace

Move InMemoryURLIndex outside of history namespace

Since InMemoryURLIndex code is no longer in chrome/browser/history but
instead in chrome/browser/autocomplete, move it out of the history
namespace.

BUG=453790
TBR=jcivelli@chromium.org

Committed: https://crrev.com/b21674ab2d2f875c4d011f43835e63eb262b2fa4
Cr-Commit-Position: refs/heads/master@{#319655}

[sdefresne, 2015-02-27 18:37:18]

sdefresne@chromium.org changed reviewers:
+ mpearson@chromium.org

[sdefresne, 2015-02-27 18:37:18]

This is the first followup to https://codereview.chromium.org/963823003/ to move
the code out of the history namespace.

[Mark P, 2015-02-27 20:57:57]

lgtm

https://codereview.chromium.org/959343004/diff/1/chrome/browser/autocomplete/...
File chrome/browser/autocomplete/history_url_provider.cc (right):

https://codereview.chromium.org/959343004/diff/1/chrome/browser/autocomplete/...
chrome/browser/autocomplete/history_url_provider.cc:712:
&description_word_starts);
nit: I think this fits in one line.

[sdefresne, 2015-03-02 08:54:14]

Thank you for the review.

https://codereview.chromium.org/959343004/diff/1/chrome/browser/autocomplete/...
File chrome/browser/autocomplete/history_url_provider.cc (right):

https://codereview.chromium.org/959343004/diff/1/chrome/browser/autocomplete/...
chrome/browser/autocomplete/history_url_provider.cc:712:
&description_word_starts);
almost, it is 81 characters :-)

[sdefresne, 2015-03-09 16:24:30]

sdefresne@chromium.org changed reviewers:
+ jcivelli@chromium.org

[sdefresne, 2015-03-09 16:24:31]

+jcivelli: OWNERS of
  chrome/test/base/history_index_restore_observer.h
  chrome/test/base/testing_profile.cc

Will TBR those changes as they are mechanical (removing history:: prefix on two
lines).

[sdefresne, 2015-03-09 16:53:00]

The CQ bit was checked by sdefresne@chromium.org

[sdefresne, 2015-03-09 16:53:01]

The patchset sent to the CQ was uploaded after l-g-t-m from
mpearson@chromium.org
Link to the patchset: https://codereview.chromium.org/959343004/#ps40001 (title:
"Rebase")

[commit-bot: I haz the power, 2015-03-09 16:53:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/959343004/40001

[commit-bot: I haz the power, 2015-03-09 16:59:48]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-09 17:08:46]

Patchset 3 (id:??) landed as
https://crrev.com/b21674ab2d2f875c4d011f43835e63eb262b2fa4
Cr-Commit-Position: refs/heads/master@{#319655}