Disables showing tooltips while a system menu is showing on windows

ui/views/widget/desktop_aura/desktop_root_window_host_win.cc

Index: ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
diff --git a/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc b/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
index e8df249ae53384ef48e87f5f248ac7b940f5d461..388b40d94136e97160c16c4c2397a4d1ec1cb27b 100644
--- a/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
+++ b/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
@@ -10,6 +10,7 @@
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/focus_client.h"
+#include "ui/aura/client/scoped_tooltip_disabler.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window_property.h"
 #include "ui/base/cursor/cursor_loader_win.h"
@@ -917,6 +918,15 @@ void DesktopRootWindowHostWin::HandleTooltipMouseMove(UINT message,
   // TODO(sky): remove from HWNDMessageHandler once non-aura path nuked.
 }
 
+void DesktopRootWindowHostWin::HandleMenuLoop(bool in_menu_loop) {
+  if (in_menu_loop) {
+    tooltip_disabler_.reset(
+        new aura::client::ScopedTooltipDisabler(root_window_->window()));
+  } else {
+    tooltip_disabler_.reset();
+  }
+}
+
 bool DesktopRootWindowHostWin::PreHandleMSG(UINT message,
                                             WPARAM w_param,
                                             LPARAM l_param,