1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ 6 #define CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ 7 8 #include "content/common/content_export.h" 9 10 namespace content { 11 12 // This class is responsible for handling updates from multiple underlying 13 // providers and resolving them to a single 'best' location fix at any given 14 // moment. 15 class CONTENT_EXPORT LocationArbitrator { 16 public: 17 virtual ~LocationArbitrator() {}; 18 19 // See more details in geolocation_provider. 20 virtual void StartProviders(bool use_high_accuracy) = 0; 21 virtual void StopProviders() = 0; 22 23 // Called everytime permission is granted to a page for using geolocation. 24 // This may either be through explicit user action (e.g. responding to the 25 // infobar prompt) or inferred from a persisted site permission. 26 // The arbitrator will inform all providers of this, which may in turn use 27 // this information to modify their internal policy. 28 virtual void OnPermissionGranted() = 0; 29 30 // Returns true if this arbitrator has received at least one call to 31 // OnPermissionGranted(). 32 virtual bool HasPermissionBeenGranted() const = 0; 33 }; 34 35 } // namespace content 36 37 #endif // CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_IMPL_H_ 38
