Enable Oilpan for modules/geolocation by default.

Source/web/WebGeolocationPosition.cpp

Index: Source/web/WebGeolocationPosition.cpp
diff --git a/Source/web/WebGeolocationPosition.cpp b/Source/web/WebGeolocationPosition.cpp
index 3fec5c930d1a820deceba0d5cd85ec8dbc54f64b..8dea218fb1c3fb69beb0fcf5cff46b7d84cb7f73 100644
--- a/Source/web/WebGeolocationPosition.cpp
+++ b/Source/web/WebGeolocationPosition.cpp
@@ -47,13 +47,13 @@ void WebGeolocationPosition::reset()
     m_private.reset();
 }
 
-WebGeolocationPosition& WebGeolocationPosition::operator=(PassRefPtrWillBeRawPtr<GeolocationPosition> position)
+WebGeolocationPosition& WebGeolocationPosition::operator=(GeolocationPosition* position)
 {
     m_private = position;
     return *this;
 }
 
-WebGeolocationPosition::operator PassRefPtrWillBeRawPtr<GeolocationPosition>() const
+WebGeolocationPosition::operator GeolocationPosition*() const
 {
     return m_private.get();
 }