Plumb SetVisible from ui::Compositor to the DirectRenderer.

ui/compositor/test/test_compositor_host_win.cc

Index: ui/compositor/test/test_compositor_host_win.cc
diff --git a/ui/compositor/test/test_compositor_host_win.cc b/ui/compositor/test/test_compositor_host_win.cc
index d4dd997410960bf6c1af6e59f10556a559447231..4bc3cc5c31053baa2de5e887f6d80597227a389b 100644
--- a/ui/compositor/test/test_compositor_host_win.cc
+++ b/ui/compositor/test/test_compositor_host_win.cc
@@ -29,7 +29,10 @@ class TestCompositorHostWin : public TestCompositorHost,
   ~TestCompositorHostWin() override { DestroyWindow(hwnd()); }
 
   // Overridden from TestCompositorHost:
-  void Show() override { ShowWindow(hwnd(), SW_SHOWNORMAL); }
+  void Show() override {
+    ShowWindow(hwnd(), SW_SHOWNORMAL);
+    compositor_->SetVisible(true);
+  }
   ui::Compositor* GetCompositor() override { return compositor_.get(); }
 
  private: