Hide/show widget on Windows screen lock/unlock

ui/views/widget/widget.cc

 // Copyright (c) 2012 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/widget/widget.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 1050 matching lines @@
 void Widget::OnNativeWidgetVisibilityChanged(bool visible) {
   View* root = GetRootView();
   if (root)
     root->PropagateVisibilityNotifications(root, visible);
   FOR_EACH_OBSERVER(WidgetObserver, observers_,
                     OnWidgetVisibilityChanged(this, visible));
   if (GetCompositor() && root && root->layer())
     root->layer()->SetVisible(visible);
 }
 
+void Widget::OnSoftVisibilityChanged(bool visible) {
+  if (View* root = GetRootView())
+    root->PropagateSoftVisibilityChanged(visible);
+}
+
 void Widget::OnNativeWidgetCreated(bool desktop_widget) {
   if (is_top_level())
     focus_manager_.reset(FocusManagerFactory::Create(this, desktop_widget));
 
   native_widget_->InitModalType(widget_delegate_->GetModalType());
 
   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetCreated(this));
 }
 
 void Widget::OnNativeWidgetDestroying() {
@@ skipping 410 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views