Window prerequisites for ShelfWindowWatcher panel support.

components/exo/shell_surface_unittest.cc

Index: components/exo/shell_surface_unittest.cc
diff --git a/components/exo/shell_surface_unittest.cc b/components/exo/shell_surface_unittest.cc
index 1ba2412c316d2ad9e7bef8fa30d56b30f17d7262..af169116b8ea359c0151c7c29a45812e4c6c6c92 100644
--- a/components/exo/shell_surface_unittest.cc
+++ b/components/exo/shell_surface_unittest.cc
@@ -204,11 +204,10 @@ TEST_F(ShellSurfaceTest, SetApplicationId) {
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));
 
   surface->Commit();
-  EXPECT_EQ("", ShellSurface::GetApplicationId(
-                    shell_surface->GetWidget()->GetNativeWindow()));
-  shell_surface->SetApplicationId("test");
-  EXPECT_EQ("test", ShellSurface::GetApplicationId(
-                        shell_surface->GetWidget()->GetNativeWindow()));
+  aura::Window* window = shell_surface->GetWidget()->GetNativeWindow();
+  EXPECT_EQ("", ShellSurface::GetApplicationId(window));
+  ShellSurface::SetApplicationId(window, "test");
+  EXPECT_EQ("test", ShellSurface::GetApplicationId(window));
 }
 
 TEST_F(ShellSurfaceTest, Move) {