Oilpan: have GeolocationInspectorAgent persistently track its controllers.

Source/modules/geolocation/GeolocationInspectorAgent.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 44 matching lines @@
     GeolocationPosition* position = (*m_controllers.begin())->lastPosition();
     if (!m_geolocationOverridden && position)
         m_platformGeolocationPosition = position;
 
     m_geolocationOverridden = true;
     if (latitude && longitude && accuracy)
         m_geolocationPosition = GeolocationPosition::create(currentTime(), *latitude, *longitude, *accuracy);
     else
         m_geolocationPosition.clear();
 
-    for (WTF::HashSet<GeolocationController*>::iterator it = m_controllers.begin(); it != m_controllers.end(); ++it)
+    for (GeolocationControllers::iterator it = m_controllers.begin(); it != m_controllers.end(); ++it)
         (*it)->positionChanged(0); // Kick location update.
 }
 
 void GeolocationInspectorAgent::clearGeolocationOverride(ErrorString*)
 {
     if (!m_geolocationOverridden)
         return;
     m_geolocationOverridden = false;
     m_geolocationPosition.clear();
 
-    if (m_platformGeolocationPosition.get()) {
-        for (WTF::HashSet<GeolocationController*>::iterator it = m_controllers.begin(); it != m_controllers.end(); ++it)
-            (*it)->positionChanged(m_platformGeolocationPosition.get());
+    if (GeolocationPosition* platformPosition = m_platformGeolocationPosition.get()) {
+        for (GeolocationControllers::iterator it = m_controllers.begin(); it != m_controllers.end(); ++it)
+            (*it)->positionChanged(platformPosition);
     }
 }
 
 GeolocationPosition* GeolocationInspectorAgent::overrideGeolocationPosition(GeolocationPosition* position)
 {
     if (m_geolocationOverridden) {
         if (position)
             m_platformGeolocationPosition = position;
         return m_geolocationPosition.get();
     }
     return position;
 }
 
 void GeolocationInspectorAgent::AddController(GeolocationController* controller)
 {
     m_controllers.add(controller);
 }
 
 void GeolocationInspectorAgent::RemoveController(GeolocationController* controller)
 {
     m_controllers.remove(controller);
 }
 
 } // namespace WebCore