Makes sure switching workspaces only animations windows that want to

ash/wm/workspace/workspace_manager_unittest.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 "ash/wm/workspace/workspace_manager.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/activation_controller.h"
@@ skipping 378 matching lines @@
   ASSERT_EQ(1u, workspaces().size());
   EXPECT_EQ(Workspace::TYPE_MAXIMIZED, workspaces()[0]->type());
   ASSERT_EQ(1u, workspaces()[0]->windows().size());
   EXPECT_EQ(w1.get(), workspaces()[0]->windows()[0]);
   EXPECT_EQ(GetFullscreenBounds(w1.get()).width(), w1->bounds().width());
   EXPECT_EQ(GetFullscreenBounds(w1.get()).height(), w1->bounds().height());
   ASSERT_TRUE(GetRestoreBounds(w1.get()));
   EXPECT_EQ(gfx::Rect(0, 0, 250, 251), *GetRestoreBounds(w1.get()));
 }
 
+// Makes sure switching workspaces doesn't show transient windows.
+TEST_F(WorkspaceManagerTest, DontShowTransientsOnSwitch) {
+  scoped_ptr<Window> w1(CreateTestWindow());
+  scoped_ptr<Window> w2(CreateTestWindow());
+
+  w1->SetBounds(gfx::Rect(0, 0, 250, 251));
+  w2->SetBounds(gfx::Rect(0, 0, 250, 251));
+  w1->AddTransientChild(w2.get());
+
+  w1->Show();
+
+  scoped_ptr<Window> w3(CreateTestWindow());
+  w3->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
+  w3->Show();
+
+  EXPECT_FALSE(w1->layer()->IsDrawn());
+  EXPECT_FALSE(w2->layer()->IsDrawn());
+  EXPECT_TRUE(w3->layer()->IsDrawn());
+
+  w1->Show();
+  EXPECT_TRUE(w1->layer()->IsDrawn());
+  EXPECT_FALSE(w2->layer()->IsDrawn());
+  EXPECT_FALSE(w3->layer()->IsDrawn());
+}
+
 }  // namespace internal
 }  // namespace ash