Rename WebCore to blink in Modules

Source/modules/geolocation/GeofencingRegion.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 GeofencingRegion_h
 #define GeofencingRegion_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 class GeofencingRegion : public GarbageCollectedFinalized<GeofencingRegion>, public ScriptWrappable {
     WTF_MAKE_NONCOPYABLE(GeofencingRegion);
 public:
     virtual ~GeofencingRegion() { }
 
     String id() const { return m_id; }
 
     virtual void trace(Visitor*) { }
 
 protected:
     GeofencingRegion(const String& id) : m_id(id) { }
 
 private:
     String m_id;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif