views: Some more layer change, and add/update some tests for layers.

views/widget/widget.cc

 // Copyright (c) 2011 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 "views/widget/widget.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "ui/base/l10n/l10n_font_util.h"
@@ skipping 852 matching lines @@
   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(focused_view,
                                                         GetNativeView());
 }
 
 void Widget::OnNativeBlur(gfx::NativeView focused_view) {
   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(GetNativeView(),
                                                         focused_view);
 }
 
 void Widget::OnNativeWidgetVisibilityChanged(bool visible) {
-  GetRootView()->PropagateVisibilityNotifications(GetRootView(), visible);
+  View* root = GetRootView();
+  root->PropagateVisibilityNotifications(root, visible);
   FOR_EACH_OBSERVER(Observer, observers_,
                     OnWidgetVisibilityChanged(this, visible));
+  if (GetCompositor() && root->layer())
+    root->layer()->SetVisible(visible);
 }
 
 void Widget::OnNativeWidgetCreated() {
   if (is_top_level())
     focus_manager_.reset(FocusManagerFactory::Create(this));
 
   native_widget_->SetAccessibleRole(
       widget_delegate_->GetAccessibleWindowRole());
   native_widget_->SetAccessibleState(
       widget_delegate_->GetAccessibleWindowState());
@@ skipping 297 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views