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| 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 enable_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_H_ |
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