The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1972027ec61177ec63f2cebaea55890c24d87f62

commit 1972027ec61177ec63f2cebaea55890c24d87f62
Author: tbansal <tbansal@chromium.org>
Date: Tue Jun 07 08:12:14 2016

Split SocketWatcher and SocketWatcherFactory out of NQE

This is a simple refactoring CL, and does not involve any
functionality change.

BUG= 616302 

Review-Url: https://codereview.chromium.org/2024813003
Cr-Commit-Position: refs/heads/master@{#398250}

[modify] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/net.gypi
[modify] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/network_quality_estimator.cc
[modify] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/network_quality_estimator.h
[add] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/socket_watcher.cc
[add] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/socket_watcher.h
[add] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/socket_watcher_factory.cc
[add] https://crrev.com/1972027ec61177ec63f2cebaea55890c24d87f62/net/nqe/socket_watcher_factory.h