Remove last usage functions from HostContentSettingsMap and clean up prefs

device/geolocation/geolocation_service_impl.h

 // Copyright 2014 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 <memory>
 
 #include "base/macros.h"
 #include "device/geolocation/geolocation_provider_impl.h"
 #include "device/geolocation/public/interfaces/geolocation.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 #ifndef DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_
 #define DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_
 
 namespace device {
 
 class GeolocationProvider;
 class GeolocationServiceContext;
 
 // Implements the GeolocationService Mojo interface.
 class GeolocationServiceImpl : public mojom::GeolocationService {
  public:
   // |context| must outlive this object. |update_callback| will be called when
   // location updates are sent, allowing the client to know when the service
   // is being used.
   GeolocationServiceImpl(
       mojo::InterfaceRequest<mojom::GeolocationService> request,
-      GeolocationServiceContext* context,
-      const base::Closure& update_callback);
+      GeolocationServiceContext* context);
   ~GeolocationServiceImpl() override;
 
   // Starts listening for updates.
   void StartListeningForUpdates();
 
   // Pauses and resumes sending updates to the client of this instance.
   void PauseUpdates();
   void ResumeUpdates();
 
   // Enables and disables geolocation override.
@@ skipping 10 matching lines @@
   void OnLocationUpdate(const Geoposition& position);
   void ReportCurrentPosition();
 
   // The binding between this object and the other end of the pipe.
   mojo::Binding<mojom::GeolocationService> binding_;
 
   // Owns this object.
   GeolocationServiceContext* context_;
   std::unique_ptr<GeolocationProvider::Subscription> geolocation_subscription_;
 
-  // Callback that allows the instantiator of this class to be notified on
-  // position updates.
-  base::Closure update_callback_;
-
   // The callback passed to QueryNextPosition.
   QueryNextPositionCallback position_callback_;
 
   // Valid iff SetOverride() has been called and ClearOverride() has not
   // subsequently been called.
   Geoposition position_override_;
 
   mojom::Geoposition current_position_;
 
   // Whether this instance is currently observing location updates with high
   // accuracy.
   bool high_accuracy_;
 
   bool has_position_to_report_;
 
   DISALLOW_COPY_AND_ASSIGN(GeolocationServiceImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_