Fix XFA compilation noise, part 1.

fpdfsdk/src/javascript/JS_Runtime.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef FPDFSDK_SRC_JAVASCRIPT_JS_RUNTIME_H_
 #define FPDFSDK_SRC_JAVASCRIPT_JS_RUNTIME_H_
 
 #include <set>
@@ skipping 39 matching lines @@
   bool AddEventToSet(const FieldEvent& event);
   void RemoveEventFromSet(const FieldEvent& event);
 
   void BeginBlock() { m_bBlocking = TRUE; }
   void EndBlock() { m_bBlocking = FALSE; }
   FX_BOOL IsBlocking() const { return m_bBlocking; }
 
   v8::Isolate* GetIsolate() const { return m_isolate; }
   v8::Local<v8::Context> NewJSContext();
 
-  virtual FX_BOOL GetHValueByName(const CFX_ByteStringC& utf8Name,
-                                  FXJSE_HVALUE hValue);
-  virtual FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
-                                  FXJSE_HVALUE hValue);
+  // IJS_Runtime:
+  FX_BOOL GetHValueByName(const CFX_ByteStringC& utf8Name,
+                          FXJSE_HVALUE hValue) override;
+  FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
+                          FXJSE_HVALUE hValue) override;
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
  private:
   void DefineJSObjects();
 
   CFX_ArrayTemplate<CJS_Context*> m_ContextArray;
   CPDFDoc_Environment* m_pApp;
   CPDFSDK_Document* m_pDocument;
   FX_BOOL m_bBlocking;
   std::set<FieldEvent> m_FieldEventSet;
   v8::Isolate* m_isolate;
   bool m_isolateManaged;
   v8::Global<v8::Context> m_context;
   std::set<Observer*> m_observers;
 };
 
 #endif  // FPDFSDK_SRC_JAVASCRIPT_JS_RUNTIME_H_