Fix missing <memory> header for Windows dump_syms

Change-Id: Ia58efa4ec5b30f644f8114eab85ef589271291dd
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/3271972
Reviewed-by: Nelson Billing <nbilling@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>

src/tools/windows/dump_syms/dump_syms.cc

@@ -33,6 +33,7 @@
 #include <stdio.h>
 #include <wchar.h>
 
+#include <memory>
 #include <string>
 
 #include "common/windows/pdb_source_line_writer.h"