Replace calls to deprecated CFX_{Wide,Byte}String::Empty()

xfa/fxfa/include/fxfa.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 XFA_FXFA_INCLUDE_FXFA_H_
 #define XFA_FXFA_INCLUDE_FXFA_H_
 
 #include <vector>
@@ skipping 132 matching lines @@
   virtual ~IXFA_AppProvider() {}
 
   /**
    * Specifies the name of the client application in which a form currently
    * exists. Such as Exchange-Pro.
    */
   virtual void SetAppType(const CFX_WideStringC& wsAppType) = 0;
   virtual void GetAppType(CFX_WideString& wsAppType) = 0;
   virtual void SetFoxitAppType(const CFX_WideStringC& wsFoxitAppType) {}
   virtual void GetFoxitAppType(CFX_WideString& wsFoxitAppType) {
-    wsFoxitAppType.Empty();
+    wsFoxitAppType.clear();
   }
 
   /**
    * Returns the language of the running host application. Such as zh_CN
    */
   virtual void GetLanguage(CFX_WideString& wsLanguage) = 0;
 
   /**
    * Returns the platform of the machine running the script. Such as WIN
    */
   virtual void GetPlatform(CFX_WideString& wsPlatform) = 0;
 
   /**
    * Indicates the packaging of the application that is running the script. Such
    * as Full
    */
   virtual void GetVariation(CFX_WideString& wsVariation) = 0;
 
   /**
    * Indicates the version number of the current application. Such as 9
    */
   virtual void GetVersion(CFX_WideString& wsVersion) = 0;
   virtual void GetFoxitVersion(CFX_WideString& wsFoxitVersion) {
-    wsFoxitVersion.Empty();
+    wsFoxitVersion.clear();
   }
 
   /**
    * Get application name, such as Phantom.
    */
   virtual void GetAppName(CFX_WideString& wsName) = 0;
   virtual void GetFoxitAppName(CFX_WideString& wsFoxitName) {
-    wsFoxitName.Empty();
+    wsFoxitName.clear();
   }
 
   /**
    * Causes the system to play a sound.
    * @param[in] dwType The system code for the appropriate sound.0 (Error)1
    * (Warning)2 (Question)3 (Status)4 (Default)
    */
   virtual void Beep(uint32_t dwType) = 0;
 
   /**
@@ skipping 233 matching lines @@
 };
 #define XFA_VALIDATE_preSubmit 1
 #define XFA_VALIDATE_prePrint 2
 #define XFA_VALIDATE_preExecute 3
 #define XFA_VALIDATE_preSave 4
 class CXFA_EventParam {
  public:
   CXFA_EventParam() {
     m_pTarget = NULL;
     m_eType = XFA_EVENT_Unknown;
-    m_wsResult.Empty();
+    m_wsResult.clear();
     Reset();
   }
   void Reset() {
-    m_wsChange.Empty();
+    m_wsChange.clear();
     m_iCommitKey = 0;
-    m_wsFullText.Empty();
+    m_wsFullText.clear();
     m_bKeyDown = FALSE;
     m_bModifier = FALSE;
-    m_wsNewContentType.Empty();
-    m_wsNewText.Empty();
-    m_wsPrevContentType.Empty();
-    m_wsPrevText.Empty();
+    m_wsNewContentType.clear();
+    m_wsNewText.clear();
+    m_wsPrevContentType.clear();
+    m_wsPrevText.clear();
     m_bReenter = FALSE;
     m_iSelEnd = 0;
     m_iSelStart = 0;
     m_bShift = FALSE;
-    m_wsSoapFaultCode.Empty();
-    m_wsSoapFaultString.Empty();
+    m_wsSoapFaultCode.clear();
+    m_wsSoapFaultString.clear();
     m_bIsFormReady = FALSE;
     m_iValidateActivities = XFA_VALIDATE_preSubmit;
   }
   CXFA_WidgetAcc* m_pTarget;
   XFA_EVENTTYPE m_eType;
   CFX_WideString m_wsResult;
   FX_BOOL m_bCancelAction;
   int32_t m_iCommitKey;
   FX_BOOL m_bKeyDown;
   FX_BOOL m_bModifier;
@@ skipping 78 matching lines @@
   virtual CXFA_FFWidget* MoveToNext() = 0;
   virtual CXFA_FFWidget* MoveToPrevious() = 0;
   virtual CXFA_FFWidget* GetCurrentWidget() = 0;
   virtual FX_BOOL SetCurrentWidget(CXFA_FFWidget* hWidget) = 0;
 
  protected:
   ~IXFA_WidgetIterator() {}
 };
 
 #endif  // XFA_FXFA_INCLUDE_FXFA_H_