ResourceResponse: Fix self-assignment in DeepCopy().

ResourceResponse: Fix self-assignment in DeepCopy().

Fix what looks like a copy-paste error in the assignment of
|was_alternate_protocol_available|.

Committed: https://crrev.com/b11f5295d455e29e743481cffa93b29baf182bc4
Cr-Commit-Position: refs/heads/master@{#317374}

[Raphael Kubo da Costa (rakuco), 2015-02-20 14:53:18]

raphael.kubo.da.costa@intel.com changed reviewers:
+ davidben@chromium.org, mmenke@chromium.org

[mmenke, 2015-02-20 14:58:23]

Eeee....LGTM!

[Raphael Kubo da Costa (rakuco), 2015-02-20 15:00:20]

The CQ bit was checked by raphael.kubo.da.costa@intel.com

[commit-bot: I haz the power, 2015-02-20 15:00:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/941973004/20001

[commit-bot: I haz the power, 2015-02-20 15:19:06]

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

[commit-bot: I haz the power, 2015-02-20 15:19:07]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[davidben, 2015-02-20 15:24:18]

Oof. lgtm.

[davidben, 2015-02-20 19:34:58]

The CQ bit was checked by davidben@chromium.org

[commit-bot: I haz the power, 2015-02-20 19:35:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/941973004/20001

[commit-bot: I haz the power, 2015-02-20 19:38:41]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-02-20 19:39:22]

Patchset 2 (id:??) landed as
https://crrev.com/b11f5295d455e29e743481cffa93b29baf182bc4
Cr-Commit-Position: refs/heads/master@{#317374}