Introduce a monotonic_clock module for Mojo.js.

mojo/apps/js/bindings/monotonic_clock.h

Index: mojo/apps/js/bindings/monotonic_clock.h
diff --git a/mojo/apps/js/bindings/threading.h b/mojo/apps/js/bindings/monotonic_clock.h
similarity index 64%
copy from mojo/apps/js/bindings/threading.h
copy to mojo/apps/js/bindings/monotonic_clock.h
index ac8e221377afdeadb90036334beac1a1f2727353..097528eb21f5165fd88ea980e840acf00ae3c3eb 100644
--- a/mojo/apps/js/bindings/threading.h
+++ b/mojo/apps/js/bindings/monotonic_clock.h
@@ -2,24 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_APPS_JS_BINDINGS_THREADING_H_
-#define MOJO_APPS_JS_BINDINGS_THREADING_H_
+#ifndef MOJO_APPS_JS_BINDING_MONOTONIC_CLOCK_H_
+#define MOJO_APPS_JS_BINDING_MONOTONIC_CLOCK_H_
 
-#include "gin/public/wrapper_info.h"
 #include "v8/include/v8.h"
 
 namespace mojo {
 namespace apps {
 
-class Threading {
+class MonotonicClock {
  public:
   static const char kModuleName[];
   static v8::Local<v8::Value> GetModule(v8::Isolate* isolate);
- private:
-  Threading();
 };
 
 }  // namespace apps
 }  // namespace mojo
 
-#endif  // MOJO_APPS_JS_BINDINGS_THREADING_H_
+#endif  // MOJO_APPS_JS_BINDING_MONOTONIC_CLOCK_H_