Migrate chrome/browser files to histogram_macros.h includes.

Migrate chrome/browser files to histogram_macros.h includes.

Also fixes one linter error that git cl upload warned me about in
gpu_mode_manager.cc

BUG=416479
TBR=sky@chromium.org

Committed: https://crrev.com/aa060316037b415a2561b7671dc715991764a381
Cr-Commit-Position: refs/heads/master@{#416095}

[Alexei Svitkine (slow), 2016-09-01 21:42:06]

asvitkine@chromium.org changed reviewers:
+ isherman@chromium.org

[Alexei Svitkine (slow), 2016-09-01 21:42:08]

isherman: PTAL
sky: TBR for chrome/ OWNERS

[Ilya Sherman, 2016-09-01 21:44:27]

LGTM

[Ilya Sherman, 2016-09-01 21:44:51]

The CQ bit was checked by isherman@chromium.org

[commit-bot: I haz the power, 2016-09-01 21:45:21]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-01 22:44:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-01 22:45:59]

Description was changed from

==========
Migrate chrome/browser files to histogram_macros.h includes.

Also fixes one linter error that git cl upload warned me about in
gpu_mode_manager.cc

BUG=416479
TBR=sky@chromium.org
==========

to

==========
Migrate chrome/browser files to histogram_macros.h includes.

Also fixes one linter error that git cl upload warned me about in
gpu_mode_manager.cc

BUG=416479
TBR=sky@chromium.org

Committed: https://crrev.com/aa060316037b415a2561b7671dc715991764a381
Cr-Commit-Position: refs/heads/master@{#416095}
==========

[commit-bot: I haz the power, 2016-09-01 22:46:01]

Patchset 1 (id:??) landed as
https://crrev.com/aa060316037b415a2561b7671dc715991764a381
Cr-Commit-Position: refs/heads/master@{#416095}