Remove last usage functions from HostContentSettingsMap and clean up prefs

device/geolocation/geolocation_service_context.cc

 // 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 "device/geolocation/geolocation_service_context.h"
 
 #include <utility>
 
 #include "device/geolocation/geolocation_service_impl.h"
 
 namespace device {
 
 GeolocationServiceContext::GeolocationServiceContext() {}
 
 GeolocationServiceContext::~GeolocationServiceContext() {}
 
 void GeolocationServiceContext::CreateService(
-    const base::Closure& update_callback,
     mojo::InterfaceRequest<mojom::GeolocationService> request) {
   GeolocationServiceImpl* service =
-      new GeolocationServiceImpl(std::move(request), this, update_callback);
+      new GeolocationServiceImpl(std::move(request), this);
   services_.push_back(service);
   if (geoposition_override_)
     service->SetOverride(*geoposition_override_.get());
   else
     service->StartListeningForUpdates();
 }
 
 void GeolocationServiceContext::ServiceHadConnectionError(
     GeolocationServiceImpl* service) {
   auto it = std::find(services_.begin(), services_.end(), service);
   DCHECK(it != services_.end());
   services_.erase(it);
 }
 
 void GeolocationServiceContext::SetOverride(
     std::unique_ptr<Geoposition> geoposition) {
   geoposition_override_.swap(geoposition);
   for (auto* service : services_) {
     service->SetOverride(*geoposition_override_.get());
   }
 }
 
 void GeolocationServiceContext::ClearOverride() {
   for (auto* service : services_) {
     service->ClearOverride();
   }
 }
 
 }  // namespace device