Move JS support code from //mojo/edk/js to //services/js/system

services/js/system/handle_close_observer.h

Index: services/js/system/handle_close_observer.h
diff --git a/mojo/edk/js/handle_close_observer.h b/services/js/system/handle_close_observer.h
similarity index 70%
rename from mojo/edk/js/handle_close_observer.h
rename to services/js/system/handle_close_observer.h
index 3e537fd7d1913ff2c042baac381ceba5373da0b7..2f460c2b902da4215729db592106271cbb42f4af 100644
--- a/mojo/edk/js/handle_close_observer.h
+++ b/services/js/system/handle_close_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_EDK_JS_HANDLE_CLOSE_OBSERVER_H_
-#define MOJO_EDK_JS_HANDLE_CLOSE_OBSERVER_H_
+#ifndef SERVICES_JS_SYSTEM_HANDLE_CLOSE_OBSERVER_H_
+#define SERVICES_JS_SYSTEM_HANDLE_CLOSE_OBSERVER_H_
 
 namespace mojo {
 namespace js {
@@ -19,4 +19,4 @@ class HandleCloseObserver {
 }  // namespace js
 }  // namespace mojo
 
-#endif  // MOJO_EDK_JS_HANDLE_CLOSE_OBSERVER_H_
+#endif  // SERVICES_JS_SYSTEM_HANDLE_CLOSE_OBSERVER_H_