Fixing problem with edge swipe exiting immersive mode

ash/wm/immersive_fullscreen_controller.cc

Index: ash/wm/immersive_fullscreen_controller.cc
diff --git a/ash/wm/immersive_fullscreen_controller.cc b/ash/wm/immersive_fullscreen_controller.cc
index b5df4b1062d5ccac5db29284840d95e0bc090da6..63c380c14864983e7099714fe93d239d1477d013 100644
--- a/ash/wm/immersive_fullscreen_controller.cc
+++ b/ash/wm/immersive_fullscreen_controller.cc
@@ -274,8 +274,13 @@ void ImmersiveFullscreenController::SetEnabled(WindowType window_type,
 
   EnableWindowObservers(enabled_);
 
+  ash::wm::WindowState* window_state = wm::GetWindowState(native_window_);
   // Auto hide the shelf in immersive fullscreen instead of hiding it.
-  wm::GetWindowState(native_window_)->set_hide_shelf_when_fullscreen(!enabled);
+  window_state->set_hide_shelf_when_fullscreen(!enabled);
+
+  // Update the window's immersive mode state for the window manager.
+  window_state->set_in_immersive_fullscreen(enabled);
+
   Shell::GetInstance()->UpdateShelfVisibility();
 
   if (enabled_) {