Update from https://crrev.com/311346

net/tools/balsa/balsa_headers.h

Index: net/tools/balsa/balsa_headers.h
diff --git a/net/tools/balsa/balsa_headers.h b/net/tools/balsa/balsa_headers.h
index 840aae5e72e46398196d47fd35fc40ccf6ea3ef5..72f90c72925860509a3800cee0e3c6e800bb3f90 100644
--- a/net/tools/balsa/balsa_headers.h
+++ b/net/tools/balsa/balsa_headers.h
@@ -818,11 +818,14 @@ class BalsaHeaders {
 
   // Dump the textural representation of the header object to a string, which
   // is suitable for writing out to logs. All CRLF will be printed out as \n.
-  // This function can be called on a header object in any state. Raw header
-  // data will be printed out if the header object is not completely parsed,
-  // e.g., when there was an error in the middle of parsing.
-  // The header content is appended to the string; the original content is not
-  // cleared.
+  // This function can be called on a header object in any state. The header
+  // content is appended to the string; the original content is not cleared.
+  void DumpHeadersToString(std::string* str) const;
+
+  // Calls DumpHeadersToString to dump the textural representation of the header
+  // object to a string. Raw header data will be printed out if the header
+  // object is not completely parsed, e.g., when there was an error in the
+  // middle of parsing.
   void DumpToString(std::string* str) const;
 
   const base::StringPiece first_line() const {