Revert of [WebSocket] Send a close frame when the renderer process is gone.

Revert of [WebSocket] Send a close frame when the renderer process is gone. (https://codereview.chromium.org/390773002/)

Reason for revert:
http://build.chromium.org/p/chromium.memory/builders/Linux%20ASan%20LSan%20Tests%20%282%29/builds/5350

Original issue's description:
> [WebSocket] Send a close frame when the renderer process is gone.
> 
> Renderer processes may die without clearing its |WebSocketBridge|s.
> It is helpful to send a close frame with code = 1001 in such a case.
> 
> BUG=392534
> R=ricea@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285557

TBR=ricea@chromium.org,jgraettinger@chromium.org,eroman@chromium.org,mmenke@chromium.org,yhirano@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=392534
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285564

[Vladislav Kaznacheev, 2014-07-25 11:55:35]

Created Revert of [WebSocket] Send a close frame when the renderer process is
gone.

[commit-bot: I haz the power, 2014-07-25 11:56:15]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/kaznacheev@chromium.org/416333004/1

[commit-bot: I haz the power, 2014-07-25 11:57:19]

Change committed as 285564