Revert of Reland: Geolocation: move from content/browser to device/

content/browser/geolocation/wifi_data_provider_chromeos.h

Index: content/browser/geolocation/wifi_data_provider_chromeos.h
diff --git a/content/browser/geolocation/wifi_data_provider_chromeos.h b/content/browser/geolocation/wifi_data_provider_chromeos.h
new file mode 100644
index 0000000000000000000000000000000000000000..df74768fa49891bff63cd8f8c012d59b1adacfd6
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+++ b/content/browser/geolocation/wifi_data_provider_chromeos.h
@@ -0,0 +1,67 @@
+// Copyright (c) 2011 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.
+
+#ifndef CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_CHROMEOS_H_
+#define CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_CHROMEOS_H_
+
+#include <memory>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "content/browser/geolocation/wifi_data_provider.h"
+#include "content/browser/geolocation/wifi_polling_policy.h"
+
+namespace content {
+
+class CONTENT_EXPORT WifiDataProviderChromeOs : public WifiDataProvider {
+ public:
+  WifiDataProviderChromeOs();
+
+  // WifiDataProvider
+  void StartDataProvider() override;
+  void StopDataProvider() override;
+  bool GetData(WifiData* data) override;
+
+ private:
+  friend class GeolocationChromeOsWifiDataProviderTest;
+  ~WifiDataProviderChromeOs() override;
+
+  // UI thread
+  void DoWifiScanTaskOnUIThread();  // The polling task
+  void DoStartTaskOnUIThread();
+
+  // Client thread
+  void DidWifiScanTaskNoResults();
+  void DidWifiScanTask(const WifiData& new_data);
+
+  // Will schedule a scan; i.e. enqueue DoWifiScanTask deferred task.
+  void ScheduleNextScan(int interval);
+
+  // Will schedule starting of the scanning process.
+  void ScheduleStart();
+
+  // Will schedule stopping of the scanning process.
+  void ScheduleStop();
+
+  // Get access point data from chromeos.
+  bool GetAccessPointData(WifiData::AccessPointDataSet* data);
+
+  // Controls the polling update interval. (client thread)
+  std::unique_ptr<WifiPollingPolicy> polling_policy_;
+
+  // The latest wifi data. (client thread)
+  WifiData wifi_data_;
+
+  // Whether we have strated the data provider. (client thread)
+  bool started_;
+
+  // Whether we've successfully completed a scan for WiFi data. (client thread)
+  bool is_first_scan_complete_;
+
+  DISALLOW_COPY_AND_ASSIGN(WifiDataProviderChromeOs);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_CHROMEOS_H_