Revert of DevTools: Removed refcounting from AndroidWebSocket

Revert of DevTools: Removed refcounting from AndroidWebSocket (patchset #12 of https://codereview.chromium.org/449883002/)

Reason for revert:
There is a crash when port forwarding is turned off while there is at least one connected device.

BUG=407137
Original issue's description:
> DevTools: Removed refcounting from AndroidWebSocket
> 
> Issue 387067 can be resolved by having port forwarding socket dependent on all other references to AndroidDeviceManager::Device.
> 
> This requires for lifetime of AWS to be manageable in the first place.
> 
> BUG=387067
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=289306

Committed: https://crrev.com/5e3d07bf114469cb2cfe19f234b9ed704c89f6aa
Cr-Commit-Position: refs/heads/master@{#291690}

[vkuzkokov, 2014-08-25 14:35:06]

Created Revert of DevTools: Removed refcounting from AndroidWebSocket

[commit-bot: I haz the power, 2014-08-25 14:36:03]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vkuzkokov@chromium.org/505783002/1

[commit-bot: I haz the power, 2014-08-25 14:36:03]

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

[commit-bot: I haz the power, 2014-08-25 14:36:04]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[dgozman, 2014-08-25 14:38:03]

lgtm

[dgozman, 2014-08-25 14:38:08]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2014-08-25 14:39:14]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vkuzkokov@chromium.org/505783002/1

[commit-bot: I haz the power, 2014-08-25 15:33:36]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_chromium_x64_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[commit-bot: I haz the power, 2014-08-25 16:09:21]

Committed patchset #1 (1) as af7f1d5c3ed8d793717970e962c7527820b5672e

[commit-bot: I haz the power, 2014-09-10 02:34:48]

Patchset 1 (id:??) landed as
https://crrev.com/5e3d07bf114469cb2cfe19f234b9ed704c89f6aa
Cr-Commit-Position: refs/heads/master@{#291690}