[WIP] [url_utils] Implement a contiguous SchemeSet to replace vector<SchemeWithType>

[url_utils] Implement a contiguous SchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by ~5x. This function is called from all
sorts of places, in both the browser process and renderer process.

A single load of facebook.com on desktop yielded around 17k of these
calls.

As a followup, we should wrap SchemeSet in Blink and use it for the
SchemeRegistry there (which is currently just using a map).

BUG=664174, 348655

[Charlie Harrison, 2016-11-10 06:03:49]

The CQ bit was checked by csharrison@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-10 06:04:05]

Dry run: 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, 2016-11-10 07:06:44]

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

[commit-bot: I haz the power, 2016-11-10 07:06:45]

Dry run: This issue passed the CQ dry run.

[Charlie Harrison, 2016-11-10 18:49:51]

Description was changed from

==========
[url_utils] Implement ContiguousSchemeSet to replace vector<SchemeWithType>

BUG=
==========

to

==========
[url_utils] Implement ContiguousSchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by up to 5x.

BUG=
==========

[Charlie Harrison, 2016-11-29 19:56:04]

The CQ bit was checked by csharrison@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-29 19:56:24]

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

[Charlie Harrison, 2016-11-29 20:00:55]

Description was changed from

==========
[url_utils] Implement ContiguousSchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by up to 5x.

BUG=
==========

to

==========
[url_utils] Implement a contiguous SchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by ~5x. This function is called from all
sorts of places, in both the browser process and renderer process.

A single load of facebook.com on desktop yielded around 17k of these
calls.

As a followup, we should wrap SchemeSet in Blink and use it for the
SchemeRegistry there (which is currently just using a map).

BUG=
==========

[Charlie Harrison, 2016-11-29 20:54:01]

Description was changed from

==========
[url_utils] Implement a contiguous SchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by ~5x. This function is called from all
sorts of places, in both the browser process and renderer process.

A single load of facebook.com on desktop yielded around 17k of these
calls.

As a followup, we should wrap SchemeSet in Blink and use it for the
SchemeRegistry there (which is currently just using a map).

BUG=
==========

to

==========
[url_utils] Implement a contiguous SchemeSet to replace vector<SchemeWithType>

This speeds up DoIsStandard by ~5x. This function is called from all
sorts of places, in both the browser process and renderer process.

A single load of facebook.com on desktop yielded around 17k of these
calls.

As a followup, we should wrap SchemeSet in Blink and use it for the
SchemeRegistry there (which is currently just using a map).

BUG=664174,348655
==========

[commit-bot: I haz the power, 2016-11-29 22:24:47]

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

[commit-bot: I haz the power, 2016-11-29 22:24:48]

Dry run: This issue passed the CQ dry run.