Revert of Use networkingPrivate.startConnect

Revert of Use networkingPrivate.startConnect (patchset #12 id:240001 of https://codereview.chromium.org/1043343002/)

Reason for revert:
Causes browser_test failure on Win7 bot.
https://build.chromium.org/p/chromium.win/builders/Win%207%20Tests%20x64%20(1)

[ RUN      ] WebNavigationApiTest.Failures
[4444:4508:0414/144708:WARNING:data_reduction_proxy_config.cc(319)] SPDY proxy OFF at startup
[4444:2028:0414/144708:ERROR:bluetooth_adapter_win.cc(102)] NOT IMPLEMENTED
[180:3848:0414/144709:WARNING:raw_channel_win.cc(473)] WriteFile: Error (0x5) while retrieving error. (0xE8)
[180:3848:0414/144709:WARNING:channel.cc(549)] Failed to send message to ack remove remote endpoint (local ID 2147483650, remote ID 3)
[180:3848:0414/144709:WARNING:channel.cc(315)] RawChannel write error
[180:3848:0414/144709:WARNING:raw_channel_win.cc(473)] WriteFile: Error (0x3B01) while retrieving error. (0xE8)
[180:3848:0414/144709:WARNING:channel.cc(549)] Failed to send message to ack remove remote endpoint (local ID 1, remote ID 1)
[180:3848:0414/144709:WARNING:channel.cc(315)] RawChannel write error
[4444:2028:0414/144709:INFO:CONSOLE(0)] "[SUCCESS] nonExistentIframe", source: chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/test_failures.html (0)
[4444:2028:0414/144710:INFO:CONSOLE(0)] "[SUCCESS] nonExistentIframeNavigation", source: chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/test_failures.html (0)
[4444:2028:0414/144710:INFO:CONSOLE(0)] "[FAIL] cancel: Received unexpected event 'onCompleted':{"frameId":0,"processId":0,"tabId":0,"timeStamp":0,"url":"chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/e.html"}
Error
    at captureEvent (chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/framework.js:194:17)
    at chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/framework.js:219:5
    at EventImpl.dispatchToListener (extensions::event_bindings:395:22)
    at Event.publicClass.(anonymous function) [as dispatchToListener] (extensions::utils:94:26)
    at EventImpl.dispatch_ (extensions::event_bindings:379:35)
    at dispatchArgs (extensions::event_bindings:247:26)
    at dispatchEvent (extensions::event_bindings:256:7)", source: chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/test_failures.html (0)
[4444:2028:0414/144710:INFO:CONSOLE(0)] "[SUCCESS] nonExistent", source: chrome-extension://ollhgkgdokpphndfogkepkmblokamlkf/test_failures.html (0)
c:\b\build\slave\win_x64_builder\build\src\chrome\browser\extensions\api\web_navigation\web_navigation_apitest.cc(468): error: Value of: RunExtensionTest("webnavigation/failures")
  Actual: false
Expected: true
Failed 1 of 4 tests
[4444:2028:0414/144710:ERROR:browser_thread.h(263)] DeleteSoon failed on thread 0
[  FAILED  ] WebNavigationApiTest.Failures, where TypeParam =  and GetParam() =  (2465 ms)

Original issue's description:
> Use networkingPrivate.startConnect
>
> This adds checks for unconfigured or non-activated networks to internet_details.js since it no longer uses the checks in network_connect.cc.
> It also moves some notification handling from network_connect.cc to network_state_notifier.cc so that it does not rely on network_connect.cc.
>
> BUG=430115
>
> Committed: https://crrev.com/e22e5bcbad2cea941993b32e6cc3b082822a42fc
> Cr-Commit-Position: refs/heads/master@{#325108}

TBR=armansito@chromium.org,michaelpg@chromium.org,pneubeck@chromium.org,stevenjb@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=430115
Committed: https://crrev.com/907fe612f5949ef8a6c2fe3bd00ddd1c423f9f20
Cr-Commit-Position: refs/heads/master@{#325145}

[Mark P, 2015-04-14 22:54:56]

Created Revert of Use networkingPrivate.startConnect

[commit-bot: I haz the power, 2015-04-14 22:55:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1085993002/1

[commit-bot: I haz the power, 2015-04-14 22:57:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-14 22:58:28]

Patchset 1 (id:??) landed as
https://crrev.com/907fe612f5949ef8a6c2fe3bd00ddd1c423f9f20
Cr-Commit-Position: refs/heads/master@{#325145}