Move all geofencing code into its own module separate from geolocation.

Source/modules/geofencing/NavigatorGeofencing.cpp

Index: Source/modules/geofencing/NavigatorGeofencing.cpp
diff --git a/Source/modules/geofencing/NavigatorGeofencing.cpp b/Source/modules/geofencing/NavigatorGeofencing.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4a50edbf34bad7cac52c95bf0035aec01aafc3dd
--- /dev/null
+++ b/Source/modules/geofencing/NavigatorGeofencing.cpp
@@ -0,0 +1,54 @@
+// 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/geofencing/NavigatorGeofencing.h"
+
+#include "core/frame/Navigator.h"
+#include "modules/geofencing/Geofencing.h"
+
+namespace blink {
+
+NavigatorGeofencing::NavigatorGeofencing()
+{
+}
+
+NavigatorGeofencing::~NavigatorGeofencing()
+{
+}
+
+const char* NavigatorGeofencing::supplementName()
+{
+    return "NavigatorGeofencing";
+}
+
+NavigatorGeofencing& NavigatorGeofencing::from(Navigator& navigator)
+{
+    NavigatorGeofencing* supplement = static_cast<NavigatorGeofencing*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
+    if (!supplement) {
+        supplement = new NavigatorGeofencing();
+        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
+    }
+    return *supplement;
+}
+
+Geofencing* NavigatorGeofencing::geofencing(Navigator& navigator)
+{
+    return NavigatorGeofencing::from(navigator).geofencing();
+}
+
+Geofencing* NavigatorGeofencing::geofencing()
+{
+    if (!m_geofencing)
+        m_geofencing = Geofencing::create();
+    return m_geofencing.get();
+}
+
+void NavigatorGeofencing::trace(Visitor* visitor)
+{
+    visitor->trace(m_geofencing);
+    WillBeHeapSupplement<Navigator>::trace(visitor);
+}
+
+} // namespace blink