GitLab

- UI part of ProxyConfigServiceImpl is moved to UIProxyConfig and UIProxyConfigService.
- ProxyConfigServiceImpl uses NetworkStateHandler instead of NetworkLibrary except for the legacy migration of device proxy settings.
- UI code continues to use NetworkLibrary for now.

BUG=234982
TBR=willchan@chromium.org (for trivial but reviewed change in net/proxy/proxy_config.*)

Review URL: https://chromiumcodereview.appspot.com/14846004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204016 0039d316-1c4b-4281-b951-d872f2087c98