Geolocation: rename Geoposition to Position to follow Spec (take 2)

third_party/WebKit/Source/modules/geolocation/PositionCallback.idl

Index: third_party/WebKit/Source/modules/geolocation/PositionCallback.idl
diff --git a/third_party/WebKit/Source/modules/geolocation/PositionCallback.idl b/third_party/WebKit/Source/modules/geolocation/PositionCallback.idl
index 64f380344329dd9574baaeb1cf62ea8519cc3f48..ac29010b08bb614e2c38362ca2ad665571ca1dfe 100644
--- a/third_party/WebKit/Source/modules/geolocation/PositionCallback.idl
+++ b/third_party/WebKit/Source/modules/geolocation/PositionCallback.idl
@@ -23,6 +23,10 @@
  * DAMAGE.
  */
 
+// https://www.w3.org/TR/geolocation-API/#position-callback
+
+// TODO(mcasas, foolip): PositionCallback should be a callback function, not a
+// callback interface, see https://crbug.com/569301
 callback interface PositionCallback {
-    void handleEvent(Geoposition position);
+    void handleEvent(Position position);
 };