Make CFX_WideString(const CFX_WideString&) explicit.

xfa/fxfa/parser/xfa_localemgr.h

Index: xfa/fxfa/parser/xfa_localemgr.h
diff --git a/xfa/fxfa/parser/xfa_localemgr.h b/xfa/fxfa/parser/xfa_localemgr.h
index c82c47c7f3a1c43d67d78d1581ab41054ac3f17f..a3a1d4c2b9d4db2950e583c8e39d1c4a2c54bcf5 100644
--- a/xfa/fxfa/parser/xfa_localemgr.h
+++ b/xfa/fxfa/parser/xfa_localemgr.h
@@ -33,11 +33,13 @@ class IFX_Locale;
 class CXFA_LocaleMgr : public IFX_LocaleMgr {
  public:
   CXFA_LocaleMgr(CXFA_Node* pLocaleSet, CFX_WideString wsDeflcid);
-  virtual void Release();
-  virtual uint16_t GetDefLocaleID();
-  virtual IFX_Locale* GetDefLocale();
-  virtual IFX_Locale* GetLocale(uint16_t lcid);
-  virtual IFX_Locale* GetLocaleByName(const CFX_WideStringC& wsLocaleName);
+
+  void Release() override;
+  uint16_t GetDefLocaleID() override;
+  IFX_Locale* GetDefLocale() override;
+  IFX_Locale* GetLocale(uint16_t lcid) override;
+  IFX_Locale* GetLocaleByName(const CFX_WideString& wsLocaleName) override;
+
   ~CXFA_LocaleMgr();
   void SetDefLocale(IFX_Locale* pLocale);
   CFX_WideStringC GetConfigLocaleName(CXFA_Node* pConfig);