Fix an assertion failure in CFX_RTFBreak::SetLineWidth()

xfa/src/fgas/include/fx_rbk.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 _FX_RTFBREAK
 #define _FX_RTFBREAK
 class IFX_Unknown;
 class IFX_Font;
@@ skipping 169 matching lines @@
   FX_DWORD m_dwIdentity;
   CFX_RTFCharArray* m_pChars;
   IFX_Unknown* m_pUserData;
 };
 typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray;
 class IFX_RTFBreak {
  public:
   static IFX_RTFBreak* Create(FX_DWORD dwPolicies);
   virtual ~IFX_RTFBreak() {}
   virtual void Release() = 0;
-  virtual void SetLineWidth(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) = 0;
-  virtual void SetLinePos(FX_FLOAT fLinePos) = 0;
+  virtual void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) = 0;
+  virtual void SetLineStartPos(FX_FLOAT fLinePos) = 0;
   virtual FX_DWORD GetLayoutStyles() const = 0;
   virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles) = 0;
   virtual void SetFont(IFX_Font* pFont) = 0;
   virtual void SetFontSize(FX_FLOAT fFontSize) = 0;
   virtual void SetTabWidth(FX_FLOAT fTabWidth) = 0;
   virtual void AddPositionedTab(FX_FLOAT fTabPos) = 0;
   virtual void SetPositionedTabs(const CFX_FloatArray& tabs) = 0;
   virtual void ClearPositionedTabs() = 0;
   virtual void SetDefaultChar(FX_WCHAR wch) = 0;
   virtual void SetLineBreakChar(FX_WCHAR wch) = 0;
@@ skipping 17 matching lines @@
       FX_LPCRTFTEXTOBJ pText,
       FXTEXT_CHARPOS* pCharPos,
       FX_BOOL bCharCode = FALSE,
       CFX_WideString* pWSForms = NULL,
       FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0;
   virtual int32_t GetCharRects(FX_LPCRTFTEXTOBJ pText,
                                CFX_RectFArray& rtArray,
                                FX_BOOL bCharBBox = FALSE) const = 0;
 };
 #endif