Write MINIDUMP_HANDLE_DATA_STREAM to minidump

minidump/minidump_string_writer.h

Index: minidump/minidump_string_writer.h
diff --git a/minidump/minidump_string_writer.h b/minidump/minidump_string_writer.h
index ec57179ee9a092e6d9fcedb121ca565badbed248..5b82bfd2b98474320eb1c94db61cec8108cbea2c 100644
--- a/minidump/minidump_string_writer.h
+++ b/minidump/minidump_string_writer.h
@@ -99,6 +99,13 @@ class MinidumpUTF16StringWriter final
   //! \note Valid in #kStateMutable.
   void SetUTF8(const std::string& string_utf8);
 
+  //! \brief Sets the given UTF-16 string as the string to be written.
+  //!
+  //! \note Valid in #kStateMutable.
+  void SetUTF16(const base::string16& string_utf16) {
+    set_string(string_utf16);
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(MinidumpUTF16StringWriter);
 };