A window should not get activated or get input focus if it's behind the lock screen.

ui/views/test/widget_test.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/test/widget_test.h"
 
 #include "build/build_config.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/test/native_widget_factory.h"
 #include "ui/views/widget/root_view.h"
@@ skipping 114 matching lines @@
 }
 
 View* TestDesktopWidgetDelegate::GetContentsView() {
   return contents_view_ ? contents_view_ : WidgetDelegate::GetContentsView();
 }
 
 bool TestDesktopWidgetDelegate::ShouldAdvanceFocusToTopLevelWidget() const {
   return true;  // Same default as DefaultWidgetDelegate in widget.cc.
 }
 
+TestInitialFocusWidgetDelegate::TestInitialFocusWidgetDelegate(
+    gfx::NativeWindow context)
+    : view_(new View) {
+  view_->SetFocusable(true);
+
+  Widget::InitParams params(Widget::InitParams::TYPE_WINDOW);
+  params.context = context;
+  InitWidget(params);
+  GetWidget()->GetContentsView()->AddChildView(view_);
+}
+
+TestInitialFocusWidgetDelegate::~TestInitialFocusWidgetDelegate() {}
+
+View* TestInitialFocusWidgetDelegate::GetInitiallyFocusedView() {
+  return view_;
+}
+
 }  // namespace test
 }  // namespace views