Fix record_wpr to allow page tests to customize browser options.

Fix record_wpr to allow page tests to customize browser options.

This changes RecorderPageTest class to pass CustomizeBrowserOptions to
a page test object if there is one.

BUG=486776
Committed: https://crrev.com/52afaaa94312daa02712ed510d70b0b892c68f47
Cr-Commit-Position: refs/heads/master@{#329375}

[USE eero AT chromium.org, 2015-05-11 16:39:21]

e.hakkinen@samsung.com changed reviewers:
+ dtu@chromium.org, nednguyen@google.com

[USE eero AT chromium.org, 2015-05-11 16:39:22]

PTAL.

This fixes records with page tests which require customized browser options so
that they can be recorded without --extra-browser-args.

[nednguyen, 2015-05-11 16:40:35]

Can you add test coverage for this in record_wpr_unittest.py?

[USE eero AT chromium.org, 2015-05-11 17:15:43]

On 2015/05/11 16:40:35, nednguyen (slow review) wrote:
> Can you add test coverage for this in record_wpr_unittest.py?

Done.

[nednguyen, 2015-05-11 19:15:29]

lgtm

[USE eero AT chromium.org, 2015-05-12 07:28:47]

The CQ bit was checked by e.hakkinen@samsung.com

[commit-bot: I haz the power, 2015-05-12 07:28:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1138763004/20001

[commit-bot: I haz the power, 2015-05-12 08:26:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-12 08:27:34]

Patchset 2 (id:??) landed as
https://crrev.com/52afaaa94312daa02712ed510d70b0b892c68f47
Cr-Commit-Position: refs/heads/master@{#329375}