Remove implicit cast from CFX_ByteString to (const char*).

core/fxcrt/fx_basic_bstring.cpp

 // 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
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cctype>
@@ skipping 903 matching lines @@
 
 void CFX_ByteString::TrimLeft(FX_CHAR chTarget) {
   TrimLeft(CFX_ByteStringC(chTarget));
 }
 
 void CFX_ByteString::TrimLeft() {
   TrimLeft("\x09\x0a\x0b\x0c\x0d\x20");
 }
 
 uint32_t CFX_ByteString::GetID(FX_STRSIZE start_pos) const {
-  return CFX_ByteStringC(*this).GetID(start_pos);
+  return AsStringC().GetID(start_pos);
 }
 uint32_t CFX_ByteStringC::GetID(FX_STRSIZE start_pos) const {
   if (m_Length == 0) {
     return 0;
   }
   if (start_pos < 0 || start_pos >= m_Length) {
     return 0;
   }
   uint32_t strid = 0;
   if (start_pos + 4 > m_Length) {
@@ skipping 52 matching lines @@
     fraction %= scale;
     scale /= 10;
   }
   return buf_size;
 }
 CFX_ByteString CFX_ByteString::FormatFloat(FX_FLOAT d, int precision) {
   FX_CHAR buf[32];
   FX_STRSIZE len = FX_ftoa(d, buf);
   return CFX_ByteString(buf, len);
 }