Changes wrench menu button to show system menu on space. This matches

ui/base/win/hwnd_util.cc

Index: ui/base/win/hwnd_util.cc
diff --git a/ui/base/win/hwnd_util.cc b/ui/base/win/hwnd_util.cc
index 923c85cbf4de24f3a41d693cce7267a59da9ecfe..58dbff2d02bb28393467978afde1aaefe70ef4e3 100644
--- a/ui/base/win/hwnd_util.cc
+++ b/ui/base/win/hwnd_util.cc
@@ -4,6 +4,7 @@
 
 #include "ui/base/win/hwnd_util.h"
 
+#include "base/i18n/rtl.h"
 #include "base/string_util.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
@@ -174,4 +175,15 @@ void CheckWindowCreated(HWND hwnd) {
     LOG_GETLASTERROR(FATAL);
 }
 
+void ShowSystemMenu(HWND window, int screen_x, int screen_y) {
+  UINT flags = TPM_LEFTBUTTON | TPM_RIGHTBUTTON | TPM_RETURNCMD;
+  if (base::i18n::IsRTL())
+    flags |= TPM_RIGHTALIGN;
+  HMENU system_menu = GetSystemMenu(window, FALSE);
+  int command = TrackPopupMenu(system_menu, flags, screen_x, screen_y, 0,
+                               window, NULL);
+  if (command)
+    SendMessage(window, WM_SYSCOMMAND, command, 0);
+}
+
 }  // namespace ui