Make code compile with clang_use_chrome_plugin (part IV)

fpdfsdk/javascript/cjs_context.h

Index: fpdfsdk/javascript/cjs_context.h
diff --git a/fpdfsdk/javascript/cjs_context.h b/fpdfsdk/javascript/cjs_context.h
index 64b97d616efef51ee9964d2f9cec143cc42dde40..84fdf1d3e1b383ec9fa50403d1de09efada5ca65 100644
--- a/fpdfsdk/javascript/cjs_context.h
+++ b/fpdfsdk/javascript/cjs_context.h
@@ -119,13 +119,13 @@ class CJS_Context : public IJS_Context {
   void OnBatchExec(CPDFSDK_Document* pTarget) override;
   void OnConsole_Exec() override;
   void OnExternal_Exec() override;
-  void EnableMessageBox(FX_BOOL bEnable) override { m_bMsgBoxEnable = bEnable; }
+  void EnableMessageBox(FX_BOOL bEnable) override;
 
   FX_BOOL IsMsgBoxEnabled() const { return m_bMsgBoxEnable; }
-
-  CPDFDoc_Environment* GetReaderApp();
   CJS_Runtime* GetJSRuntime() const { return m_pRuntime; }
   CJS_EventHandler* GetEventHandler() const { return m_pEventHandler; }
+
+  CPDFDoc_Environment* GetReaderApp();
   CPDFSDK_Document* GetReaderDocument();
 
  private: