Fixes bug where launcher background would remain painted when it

ash/wm/workspace/workspace_manager_unittest.cc

Index: ash/wm/workspace/workspace_manager_unittest.cc
diff --git a/ash/wm/workspace/workspace_manager_unittest.cc b/ash/wm/workspace/workspace_manager_unittest.cc
index c1f2e9f1d46b5280d35e908ef9d358f250c1118e..7c858d791a5bc0c8dbeb0361cc52a195268703e7 100644
--- a/ash/wm/workspace/workspace_manager_unittest.cc
+++ b/ash/wm/workspace/workspace_manager_unittest.cc
@@ -695,5 +695,18 @@ TEST_F(WorkspaceManagerTest, MaximizeDontPersistEndsUpInOwnWorkspace) {
   EXPECT_FALSE(manager_->Contains(w1.get()));
 }
 
+// Verifies going from maximized to minimized sets the right state for painting
+// the background of the launcher.
+TEST_F(WorkspaceManagerTest, MinimizeResetsVisibility) {
+  scoped_ptr<Window> w1(CreateTestWindow());
+  w1->Show();
+  wm::ActivateWindow(w1.get());
+  w1->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
+  w1->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MINIMIZED);
+  EXPECT_EQ(ShelfLayoutManager::VISIBLE,
+            Shell::GetInstance()->shelf()->visibility_state());
+  EXPECT_FALSE(Shell::GetInstance()->launcher()->paints_background());
+}
+
 }  // namespace internal
 }  // namespace ash