Revert 256067 "Merge 255714 "Fixes bug that resulted in status b..."

ui/views/widget/desktop_aura/desktop_focus_rules.cc

Index: ui/views/widget/desktop_aura/desktop_focus_rules.cc
===================================================================
--- ui/views/widget/desktop_aura/desktop_focus_rules.cc	(revision 256070)
+++ ui/views/widget/desktop_aura/desktop_focus_rules.cc	(working copy)
@@ -14,14 +14,6 @@
 
 DesktopFocusRules::~DesktopFocusRules() {}
 
-bool DesktopFocusRules::CanActivateWindow(aura::Window* window) const {
-  if (!BaseFocusRules::CanActivateWindow(window))
-    return false;
-  // Never activate a window that is not a child of the root window. Transients
-  // spanning different DesktopNativeWidgetAuras may trigger this.
-  return !window || content_window_->GetRootWindow()->Contains(window);
-}
-
 bool DesktopFocusRules::SupportsChildActivation(aura::Window* window) const {
   // In Desktop-Aura, only the content_window or children of the RootWindow are
   // activatable.