Componentize HistoryURLProvider/ScoredHistoryMatch.

Componentize HistoryURLProvider/ScoredHistoryMatch.

No changes are needed.

BUG=371538
Committed: https://crrev.com/66c202106ea7ab3f3c078a5edfb4abf0d23cee94
Cr-Commit-Position: refs/heads/master@{#334780}

[blundell, 2015-06-16 12:54:49]

Patchset #2 (id:20001) has been deleted

[blundell, 2015-06-16 12:58:04]

blundell@chromium.org changed reviewers:
+ pkasting@chromium.org

[Peter Kasting, 2015-06-16 22:12:39]

LGTM

[blundell, 2015-06-17 06:13:50]

The CQ bit was checked by blundell@chromium.org

[commit-bot: I haz the power, 2015-06-17 06:14:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1181113005/60001

[commit-bot: I haz the power, 2015-06-17 06:49:18]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2015-06-17 06:50:58]

Patchset 3 (id:??) landed as
https://crrev.com/66c202106ea7ab3f3c078a5edfb4abf0d23cee94
Cr-Commit-Position: refs/heads/master@{#334780}

[phoglund_chromium, 2015-06-17 13:13:56]

A revert of this CL (patchset #3 id:60001) has been created in
https://codereview.chromium.org/1187943006/ by phoglund@chromium.org.

The reason for reverting is: Very speculative revert to attempt to fix
ChromeBlacklistTrialTest.BlacklistDisabledRun on win unit_tests. If this doesn't
fix it, https://codereview.chromium.org/1175603002 is next to try..

[paulmeyer, 2015-06-17 17:18:18]

A revert of this CL (patchset #3 id:60001) has been created in
https://codereview.chromium.org/1190783006/ by paulmeyer@chromium.org.

The reason for reverting is: Speculative revert to fix the Windows unit_test
failures..