Sanitize referrer from Intents

Sanitize referrer from Intents

This fixes the following test, which fails with PlzNavigate enabled:
TabsOpenedFromExternalAppTest#testHttpsReferrerFromFirstPartyNoDowngrade

BUG=699388
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

[wychen, 2017-03-22 15:23:21]

Description was changed from

==========
Sanitize referrer from Intents

This fixes the following test, which fails with PlzNavigate enabled:
TabsOpenedFromExternalAppTest#testHttpsReferrerFromFirstPartyNoDowngrade

BUG=699388
==========

to

==========
Sanitize referrer from Intents

This fixes the following test, which fails with PlzNavigate enabled:
TabsOpenedFromExternalAppTest#testHttpsReferrerFromFirstPartyNoDowngrade

BUG=699388
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
==========

[wychen, 2017-03-22 15:23:57]

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

[commit-bot: I haz the power, 2017-03-22 15:24:18]

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, 2017-03-22 16:53:43]

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

[commit-bot: I haz the power, 2017-03-22 16:53:44]

Dry run: Try jobs failed on following builders:
  linux_android_rel_ng on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/linux_androi...)

[wychen, 2017-03-22 20:15:42]

wychen@chromium.org changed reviewers:
+ clamy@chromium.org, jam@chromium.org

[wychen, 2017-03-22 20:15:43]

PTAL

[wychen, 2017-03-22 21:16:28]

Close since it's covered by  https://codereview.chromium.org/2764363002/.