[C++] Replace StripXXXSpaces by TrimXXXSpace
diff --git a/strutil.h b/strutil.h
index 600463c..b7d1147 100644
--- a/strutil.h
+++ b/strutil.h
@@ -74,4 +74,8 @@
 
 string NoLineBreak(const string& s);
 
+StringPiece TrimLeftSpace(StringPiece s);
+StringPiece TrimRightSpace(StringPiece s);
+StringPiece TrimSpace(StringPiece s);
+
 #endif  // STRUTIL_H_