Update lzma_sdk sources to 15.14.

third_party/lzma_sdk/7zBuf.h

Index: third_party/lzma_sdk/7zBuf.h
diff --git a/third_party/lzma_sdk/7zBuf.h b/third_party/lzma_sdk/7zBuf.h
index e9f2f316d0dd9d0ebf57b8aa87eb1c93c9aa9124..65f1d7a716e8f3d23e18b94fa0303d56f6f4631b 100644
--- a/third_party/lzma_sdk/7zBuf.h
+++ b/third_party/lzma_sdk/7zBuf.h
@@ -1,14 +1,12 @@
 /* 7zBuf.h -- Byte Buffer
-2009-02-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_BUF_H
 #define __7Z_BUF_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 typedef struct
 {
@@ -32,8 +30,6 @@ void DynBuf_SeekToBeg(CDynBuf *p);
 int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc);
 void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif