Revert of Reland: Geolocation: move from content/browser to device/ (patchset #2 id:20001 of https:…

device/geolocation/location_provider.h

-// Copyright (c) 2013 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 DEVICE_GEOLOCATION_LOCATION_PROVIDER_H_
-#define DEVICE_GEOLOCATION_LOCATION_PROVIDER_H_
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "device/geolocation/geoposition.h"
-
-namespace device {
-
-class LocationProvider;
-
-// The interface for providing location information.
-class LocationProvider {
- public:
-  virtual ~LocationProvider() {}
-
-  typedef base::Callback<void(const LocationProvider*, const Geoposition&)>
-      LocationProviderUpdateCallback;
-
-  // This callback will be used to notify when a new Geoposition becomes
-  // available.
-  virtual void SetUpdateCallback(
-      const LocationProviderUpdateCallback& callback) = 0;
-
-  // StartProvider maybe called multiple times, e.g. to alter the
-  // |high_accuracy| setting. Returns false if a fatal error was encountered
-  // which prevented the provider from starting.
-  virtual bool StartProvider(bool high_accuracy) = 0;
-
-  // Stops the provider from sending more requests.
-  // Important: a LocationProvider may be instantiated and StartProvider() may
-  // be called before the user has granted permission via OnPermissionGranted().
-  // This is to allow underlying providers to warm up, load their internal
-  // libraries, etc. No |LocationProviderUpdateCallback| can be run and no
-  // network requests can be done until OnPermissionGranted() has been called.
-  virtual void StopProvider() = 0;
-
-  // Gets the current best position estimate.
-  virtual void GetPosition(Geoposition* position) = 0;
-
-  // Provides a hint to the provider that new location data is needed as soon
-  // as possible.
-  virtual void RequestRefresh() = 0;
-
-  // Called everytime permission is granted to a page for using geolocation.
-  // This may either be through explicit user action (e.g. responding to the
-  // infobar prompt) or inferred from a persisted site permission.
-  // Note: See |StartProvider()| for more information.
-  virtual void OnPermissionGranted() = 0;
-};
-
-}  // namespace device
-
-#endif  // DEVICE_GEOLOCATION_LOCATION_PROVIDER_H_