Clean up remaining uses of WebCore namespace

Source/modules/geolocation/GeolocationWatchers.cpp

 // 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.
 
 #include "config.h"
 #include "modules/geolocation/GeolocationWatchers.h"
 
 #include "modules/geolocation/GeoNotifier.h"
 
-namespace WebCore {
+namespace blink {
 
 void GeolocationWatchers::trace(Visitor* visitor)
 {
     visitor->trace(m_idToNotifierMap);
     visitor->trace(m_notifierToIdMap);
 }
 
 bool GeolocationWatchers::add(int id, GeoNotifier* notifier)
 {
     ASSERT(id > 0);
@@ skipping 45 matching lines @@
 bool GeolocationWatchers::isEmpty() const
 {
     return m_idToNotifierMap.isEmpty();
 }
 
 void GeolocationWatchers::getNotifiersVector(HeapVector<Member<GeoNotifier> >& copy) const
 {
     copyValuesToVector(m_idToNotifierMap, copy);
 }
 
-} // namespace WebCore
+} // namespace blink