Revert 76228 - Move core pieces of geolocation from chrome to content.This is...

content/browser/geolocation/device_data_provider_unittest.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/threading/platform_thread.h"
-#include "content/browser/geolocation/device_data_provider.h"
-#include "content/browser/geolocation/wifi_data_provider_common.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-class NullWifiDataListenerInterface
-    : public WifiDataProviderCommon::ListenerInterface {
- public:
-  // ListenerInterface
-  virtual void DeviceDataUpdateAvailable(
-      DeviceDataProvider<WifiData>* provider) {}
-};
-
-TEST(GeolocationDeviceDataProviderWifiData, CreateDestroy) {
-  // See http://crbug.com/59913 .  The main_message_loop is not required to be
-  // run for correct behaviour, but we run it in this test to help smoke out
-  // any race conditions between processing in the main loop and the setup /
-  // tear down of the DeviceDataProvider thread.
-  MessageLoopForUI main_message_loop;
-  NullWifiDataListenerInterface listener;
-  for (int i = 0; i < 10; i++) {
-    DeviceDataProvider<WifiData>::Register(&listener);
-    for (int j = 0; j < 10; j++) {
-      base::PlatformThread::Sleep(0);
-      main_message_loop.RunAllPending();  // See comment above
-    }
-    DeviceDataProvider<WifiData>::Unregister(&listener);
-    for (int j = 0; j < 10; j++) {
-      base::PlatformThread::Sleep(0);
-      main_message_loop.RunAllPending();  // See comment above
-    }
-  }
-}
-
-}  // namespace