Remove unused constructor parameter from net::WebSocket.

Remove unused constructor parameter from net::WebSocket.

net::WebSocket has "pos" constructor parameter which is never used. This CL
removes the parameter as a refactoring.

BUG=523228
Committed: https://crrev.com/1dea7d0be721babaa2e9e7f7f19862277510718d
Cr-Commit-Position: refs/heads/master@{#349321}

[yhirano, 2015-09-11 07:09:24]

yhirano@chromium.org changed reviewers:
+ dgozman@chromium.org, mmenke@chromium.org

[mmenke, 2015-09-11 14:05:36]

LGTM

[yhirano, 2015-09-16 18:24:07]

dgozman@, do you have any comments?

[dgozman, 2015-09-16 18:27:12]

lgtm

[yhirano, 2015-09-16 18:35:09]

Thanks!

[yhirano, 2015-09-16 18:35:12]

The CQ bit was checked by yhirano@chromium.org

[commit-bot: I haz the power, 2015-09-16 18:36:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1334113003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1334113003/20001

[commit-bot: I haz the power, 2015-09-16 19:37:58]

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

[commit-bot: I haz the power, 2015-09-16 19:37:59]

Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[yhirano, 2015-09-17 00:36:41]

The CQ bit was checked by yhirano@chromium.org

[commit-bot: I haz the power, 2015-09-17 00:37:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1334113003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1334113003/20001

[commit-bot: I haz the power, 2015-09-17 02:11:05]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-09-17 02:11:45]

Patchset 2 (id:??) landed as
https://crrev.com/1dea7d0be721babaa2e9e7f7f19862277510718d
Cr-Commit-Position: refs/heads/master@{#349321}