Make chrome communicate with gpsd through libgps/shared memory

content/browser/geolocation/gps_location_provider_linux.h

 // Copyright (c) 2011 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.
 
 // This file declares GPS providers that run on linux. Currently, just uses
 // the libgps (gpsd) API. Public for testing only - for normal usage this
 // header should not be required, as location_provider.h declares the needed
 // factory function.
 
 #ifndef CONTENT_BROWSER_GEOLOCATION_GPS_LOCATION_PROVIDER_LINUX_H_
@@ skipping 15 matching lines @@
 // there's a chance it could block, so better move this into its own worker
 // thread.
 class CONTENT_EXPORT GpsLocationProviderLinux : public LocationProviderBase {
  public:
   typedef LibGps* (*LibGpsFactory)();
   // |factory| will be used to create the gpsd client library wrapper. (Note
   // NewSystemLocationProvider() will use the default factory).
   explicit GpsLocationProviderLinux(LibGpsFactory libgps_factory);
   virtual ~GpsLocationProviderLinux();
 
+  void SetGpsdReconnectIntervalMillis(int value) {
+    gpsd_reconnect_interval_millis_ = value;
+  }
+  void SetPollPeriodMovingMillis(int value) {
+    poll_period_moving_millis_ = value;
+  }
+  void SetPollPeriodStationaryMillis(int value) {
+    poll_period_stationary_millis_ = value;
+  }
+
   // LocationProvider
   virtual bool StartProvider(bool high_accuracy);
   virtual void StopProvider();
   virtual void GetPosition(Geoposition* position);
   virtual void UpdatePosition();
   virtual void OnPermissionGranted(const GURL& requesting_frame);
 
  private:
   // Task which run in the child thread.
   void DoGpsPollTask();
 
   // Will schedule a poll; i.e. enqueue DoGpsPollTask deferred task.
   void ScheduleNextGpsPoll(int interval);
 
+  int gpsd_reconnect_interval_millis_;
+  int poll_period_moving_millis_;
+  int poll_period_stationary_millis_;
+
   const LibGpsFactory libgps_factory_;
   scoped_ptr<LibGps> gps_;
   Geoposition position_;
 
   // Holder for the tasks which run on the thread; takes care of cleanup.
   base::WeakPtrFactory<GpsLocationProviderLinux> weak_factory_;
 };
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_GPS_LOCATION_PROVIDER_LINUX_H_