Show a different icon in the launcher for incognito windows

ash/launcher/launcher_unittest.cc

Index: ash/launcher/launcher_unittest.cc
diff --git a/ash/launcher/launcher_unittest.cc b/ash/launcher/launcher_unittest.cc
index b0b1be6960db73f430e321ba053271c88d16f35e..86b2af528cdaf6364f615721c8010dda495c8708 100644
--- a/ash/launcher/launcher_unittest.cc
+++ b/ash/launcher/launcher_unittest.cc
@@ -48,7 +48,8 @@ TEST_F(LauncherTest, LaunchApp) {
   int item_count = model->item_count();
 
   // Add closed app.
-  LauncherItem item(TYPE_APP);
+  LauncherItem item;
+  item.type = TYPE_APP;
   model->Add(item_count, item);
   ASSERT_EQ(++button_count, test.GetButtonCount());
   LauncherButton* button = test.GetButton(button_count - 1);
@@ -86,7 +87,8 @@ TEST_F(LauncherTest, OpenBrowser) {
   int item_count = model->item_count();
 
   // Add running tab.
-  LauncherItem item(TYPE_TABBED);
+  LauncherItem item;
+  item.type = TYPE_TABBED;
   item.status = STATUS_RUNNING;
   model->Add(item_count, item);
   ASSERT_EQ(++button_count, test.GetButtonCount());