Fix GN missing headers in //base

chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc

Index: chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
diff --git a/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc b/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
index 4555f8c66080efb027a650bc3f094359025615b5..199e51667de465154264dd73892bf71c2b067119 100644
--- a/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
+++ b/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
@@ -8,12 +8,15 @@
 #include "base/environment.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
-#include "base/win/windows_version.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/ppapi/ppapi_test.h"
 #include "components/nacl/common/nacl_switches.h"
 
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif
+
 static const base::FilePath::CharType kMockNaClGdb[] =
 #if defined(OS_WIN)
     FILE_PATH_LITERAL("mock_nacl_gdb.exe");