Makes visbility inherited. That is, in order for a window to be

ui/aura/window_unittest.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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura/event.h"
@@ skipping 576 matching lines @@
       gfx::Rect(0, 0, 500, 500), w1.get()));
   scoped_ptr<Window> w111(CreateTestWindowWithDelegate(&d111, 111,
       gfx::Rect(50, 50, 450, 450), w11.get()));
   scoped_ptr<Window> w12(CreateTestWindowWithDelegate(NULL, 12,
       gfx::Rect(0, 0, 500, 500), w1.get()));
 
   gfx::Point target_point = w111->bounds().CenterPoint();
   EXPECT_EQ(w111.get(), w1->GetEventHandlerForPoint(target_point));
 }
 
+// Verifies show/hide propagate correctly to children and the layer.
+TEST_F(WindowTest, Visibility) {
+  scoped_ptr<Window> w1(CreateTestWindowWithId(1, NULL));
+  scoped_ptr<Window> w2(CreateTestWindowWithId(2, w1.get()));
+  scoped_ptr<Window> w3(CreateTestWindowWithId(3, w2.get()));
+
+  // Create shows all the windows.
+  EXPECT_TRUE(w1->IsVisible());
+  EXPECT_TRUE(w2->IsVisible());
+  EXPECT_TRUE(w3->IsVisible());
+
+  w1->Hide();
+  EXPECT_FALSE(w1->IsVisible());
+  EXPECT_FALSE(w2->IsVisible());
+  EXPECT_FALSE(w3->IsVisible());
+
+  w2->Show();
+  EXPECT_FALSE(w1->IsVisible());
+  EXPECT_FALSE(w2->IsVisible());
+  EXPECT_FALSE(w3->IsVisible());
+
+  w3->Hide();
+  EXPECT_FALSE(w1->IsVisible());
+  EXPECT_FALSE(w2->IsVisible());
+  EXPECT_FALSE(w3->IsVisible());
+
+  w1->Show();
+  EXPECT_TRUE(w1->IsVisible());
+  EXPECT_TRUE(w2->IsVisible());
+  EXPECT_FALSE(w3->IsVisible());
+
+  w3->Show();
+  EXPECT_TRUE(w1->IsVisible());
+  EXPECT_TRUE(w2->IsVisible());
+  EXPECT_TRUE(w3->IsVisible());
+}
+
 // When set_consume_events() is called with |true| for a Window, that Window
 // should make sure that none behind it in the z-order see events if it has
 // children. If it does not have children, event targeting works as usual.
 TEST_F(WindowTest, ConsumesEvents) {
   WindowDelegateImpl d11;
   WindowDelegateImpl d121;
   scoped_ptr<Window> w1(CreateTestWindowWithDelegate(NULL, 1,
       gfx::Rect(0, 0, 500, 500), NULL));
   scoped_ptr<Window> w11(CreateTestWindowWithDelegate(&d11, 11,
       gfx::Rect(0, 0, 500, 500), w1.get()));
   scoped_ptr<Window> w111(CreateTestWindowWithDelegate(NULL, 111,
       gfx::Rect(50, 50, 450, 450), w11.get()));
   scoped_ptr<Window> w12(CreateTestWindowWithDelegate(NULL, 12,
       gfx::Rect(0, 0, 500, 500), w1.get()));
   scoped_ptr<Window> w121(CreateTestWindowWithDelegate(&d121, 121,
       gfx::Rect(150, 150, 50, 50), NULL));
 
   w12->set_consumes_events(true);
   EXPECT_EQ(w11.get(), w1->GetEventHandlerForPoint(gfx::Point(10, 10)));
 
   w12->AddChild(w121.get());
 
   EXPECT_EQ(NULL, w1->GetEventHandlerForPoint(gfx::Point(10, 10)));
   EXPECT_EQ(w121.get(), w1->GetEventHandlerForPoint(gfx::Point(175, 175)));
 }
 
 }  // namespace internal
 }  // namespace aura