Remove custom memory manager

core/include/fxcrt/fx_string.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_STRING_H_
 #define _FX_STRING_H_
 class CFX_ByteStringC;
 class CFX_ByteString;
 class CFX_WideStringC;
 class CFX_WideString;
 struct CFX_CharMap;
 class CFX_BinaryBuf;
@@ skipping 819 matching lines @@
 FX_STRSIZE FX_ftoa(FX_FLOAT f, FX_LPSTR buf);
 CFX_ByteString  FX_UTF8Encode(FX_LPCWSTR pwsStr, FX_STRSIZE len);
 inline CFX_ByteString   FX_UTF8Encode(FX_WSTR wsStr)
 {
     return FX_UTF8Encode(wsStr.GetPtr(), wsStr.GetLength());
 }
 inline CFX_ByteString   FX_UTF8Encode(const CFX_WideString &wsStr)
 {
     return FX_UTF8Encode((FX_LPCWSTR)wsStr, wsStr.GetLength());
 }
-class CFX_ByteStringL : public CFX_ByteStringC
-{
-public:
-    CFX_ByteStringL() : CFX_ByteStringC() {}
-    ~CFX_ByteStringL() {}
-
-    void                Empty(IFX_Allocator* pAllocator);
-    FX_LPSTR    AllocBuffer(FX_STRSIZE length, IFX_Allocator* pAllocator);
-
-    void                Set(FX_BSTR src, IFX_Allocator* pAllocator);
-};
-class CFX_WideStringL : public CFX_WideStringC
-{
-public:
-    CFX_WideStringL() : CFX_WideStringC() {}
-    ~CFX_WideStringL() {}
-
-    void                Empty(IFX_Allocator* pAllocator);
-    void                Set(FX_WSTR src, IFX_Allocator* pAllocator);
-
-    int                 GetInteger() const;
-    FX_FLOAT    GetFloat() const;
-
-    void                TrimRight(FX_LPCWSTR lpszTargets);
-};
-void    FX_UTF8Encode(FX_LPCWSTR pwsStr, FX_STRSIZE len, CFX_ByteStringL &utf8Str, IFX_Allocator* pAllocator = NULL);
 #endif