Separate GeoNotifier class from Geolocation

Source/modules/geolocation/GeoNotifier.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.
+
+#ifndef GeoNotifier_h
+#define GeoNotifier_h
+
+#include "platform/Timer.h"
+#include "platform/heap/Handle.h"
+
+namespace WebCore {
+
+class Geolocation;
+class Geoposition;
+class PositionCallback;
+class PositionError;
+class PositionErrorCallback;
+class PositionOptions;
+
+class GeoNotifier : public GarbageCollectedFinalized<GeoNotifier> {
+public:
+    static GeoNotifier* create(Geolocation* geolocation, PassOwnPtr<PositionCallback> positionCallback, PassOwnPtr<PositionErrorCallback> positionErrorCallback, PositionOptions* options)
+    {
+        return new GeoNotifier(geolocation, positionCallback, positionErrorCallback, options);
+    }
+    void trace(Visitor*);
+
+    PositionOptions* options() const { return m_options.get(); };
+
+    // Sets the given error as the fatal error if there isn't one yet.
+    // Starts the timer with an interval of 0.
+    void setFatalError(PositionError*);
+
+    bool useCachedPosition() const { return m_useCachedPosition; }
+
+    // Tells the notifier to use a cached position and starts its timer with
+    // an interval of 0.
+    void setUseCachedPosition();
+
+    void runSuccessCallback(Geoposition*);
+    void runErrorCallback(PositionError*);
+
+    void startTimer();
+    void stopTimer();
+
+    // Runs the error callback if there is a fatal error. Otherwise, if a
+    // cached position must be used, registers itself for receiving one.
+    // Otherwise, the notifier has expired, and its error callback is run.
+    void timerFired(Timer<GeoNotifier>*);
+
+private:
+    GeoNotifier(Geolocation*, PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, PositionOptions*);
+
+    Member<Geolocation> m_geolocation;
+    OwnPtr<PositionCallback> m_successCallback;
+    OwnPtr<PositionErrorCallback> m_errorCallback;
+    Member<PositionOptions> m_options;
+    Timer<GeoNotifier> m_timer;
+    Member<PositionError> m_fatalError;
+    bool m_useCachedPosition;
+};
+
+} // namespace WebCore
+
+#endif // GeoNotifier_h