New urls for the check.googlezip.net test pages.

New urls for the check.googlezip.net test pages.

The Chrome-Proxy integration tests should not be dependent on the Chrome
404 error page. Use the new chrome.googlezip.net/chrome-proxy-header/c_*
urls, which have their own resources.

BUG=472298
Committed: https://crrev.com/26cfbca7c9736f5d543c258106bae420a0ea9ba3
Cr-Commit-Position: refs/heads/master@{#325341}

[megjablon, 2015-04-14 18:53:46]

Patchset #1 (id:1) has been deleted

[megjablon, 2015-04-14 19:17:46]

megjablon@chromium.org changed reviewers:
+ sclittle@chromium.org

[megjablon, 2015-04-14 19:17:46]

Waiting for xt bypass rules push

[sclittle, 2015-04-14 19:24:14]

lgtm

[megjablon, 2015-04-15 22:58:51]

The CQ bit was checked by megjablon@chromium.org

[commit-bot: I haz the power, 2015-04-15 22:59:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1088833006/20001

[commit-bot: I haz the power, 2015-04-15 23:29:30]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-04-15 23:30:24]

Patchset 1 (id:??) landed as
https://crrev.com/26cfbca7c9736f5d543c258106bae420a0ea9ba3
Cr-Commit-Position: refs/heads/master@{#325341}