Merge to XFA: Make CFX_WideString::LockBuffer() completely unused.

core/src/fxcrt/fx_basic_bstring.cpp

Index: core/src/fxcrt/fx_basic_bstring.cpp
diff --git a/core/src/fxcrt/fx_basic_bstring.cpp b/core/src/fxcrt/fx_basic_bstring.cpp
index cda7d1fdd7531618c6fd2e857fb3ecb29dc60fa6..961aebe69c001ebc0f9cd62fcf6c51e262c46b9e 100644
--- a/core/src/fxcrt/fx_basic_bstring.cpp
+++ b/core/src/fxcrt/fx_basic_bstring.cpp
@@ -341,15 +341,6 @@ void CFX_ByteString::ReleaseBuffer(FX_STRSIZE nNewLength)
     m_pData->m_nDataLength = nNewLength;
     m_pData->m_String[nNewLength] = 0;
 }
-FX_LPSTR CFX_ByteString::LockBuffer()
-{
-    if (m_pData == NULL) {
-        return NULL;
-    }
-    FX_LPSTR lpsz = GetBuffer(0);
-    m_pData->m_nRefs = -1;
-    return lpsz;
-}
 void CFX_ByteString::Reserve(FX_STRSIZE len)
 {
     GetBuffer(len);