kImmersiveUnknown   42 base/win/metro.cc   static ImmersiveState state = kImmersiveUnknown;
kImmersiveUnknown   44 base/win/metro.cc   if (state == kImmersiveUnknown) {
kImmersiveUnknown   51 base/win/metro.cc   DCHECK_NE(kImmersiveUnknown, state);