Pass through geofencing API calls to the content layer.

Source/bindings/core/v8/CallbackPromiseAdapter.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 90 matching lines @@
             return;
         }
         m_resolver->reject(T::take(m_resolver.get(), error));
     }
 
 private:
     RefPtr<ScriptPromiseResolver> m_resolver;
     WTF_MAKE_NONCOPYABLE(CallbackPromiseAdapter);
 };
 
+template<typename T>
+class CallbackPromiseAdapter<void, T> FINAL : public blink::WebCallbacks<void, typename T::WebType> {
+public:
+    CallbackPromiseAdapter(PassRefPtr<ScriptPromiseResolver> resolver)

[esprehn, 2014/08/19 19:24:53]

explicit

+        : m_resolver(resolver)
+    {
+        ASSERT(m_resolver);
+    }
+    virtual ~CallbackPromiseAdapter() { }
+
+    virtual void onSuccess() OVERRIDE
+    {
+        if (!m_resolver->executionContext() || m_resolver->executionContext()->activeDOMObjectsAreStopped()) {
+            return;
+        }
+        m_resolver->resolve(V8UndefinedType());
+    }
+
+    virtual void onError(typename T::WebType* error) OVERRIDE
+    {
+        if (!m_resolver->executionContext() || m_resolver->executionContext()->activeDOMObjectsAreStopped()) {
+            T::dispose(error);
+            return;
+        }
+        m_resolver->reject(T::take(m_resolver.get(), error));
+    }
+
+private:
+    RefPtr<ScriptPromiseResolver> m_resolver;
+    WTF_MAKE_NONCOPYABLE(CallbackPromiseAdapter);
+};
+
 } // namespace blink
 
 #endif