Allow to create ARC++ windows minimized on startup.

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 575dafc6d6f9d26540c2bc94ec67a8651d594d87..8675fa25ead70bff01f2e7d8ac33f56c793186c2 100644
--- a/components/exo/shell_surface_unittest.cc
+++ b/components/exo/shell_surface_unittest.cc
@@ -126,6 +126,11 @@ TEST_F(ShellSurfaceTest, Minimize) {
   std::unique_ptr<Surface> surface(new Surface);
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));
 
+  // Minimizing can be performed before the surface is committed.
+  shell_surface->Minimize();
+  EXPECT_TRUE(shell_surface->GetWidget()->IsMinimized());
+
+  // Confirm that attaching and commiting doesn't reset the state.
   surface->Attach(buffer.get());
   surface->Commit();

[reveman, 2016/11/22 09:29:11]

Would be nice to check that shell surface is still minimized after this Commit()
call but before the next Minimize call.

[mtomasz, 2016/11/24 00:51:04]

Acknowledged.

   shell_surface->Minimize();

[reveman, 2016/11/22 09:29:11]

Not sure it makes sense to test calling this now that we expect the shell
surface to already be minimized. Can you instead restore it, verify that it
restored correctly, then minimize it again and verify that it worked?

[mtomasz, 2016/11/24 00:51:04]

Oops, minimizing here completely doesn't make sense. That's what happens when in
rush...

My intention was to confirm that after committing it would still be minimized,
so just removing this line (without restoring). Is it OK?