Plumb SetVisible from ui::Compositor to the DirectRenderer.

ui/compositor/test/test_compositor_host_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/compositor/test/test_compositor_host.h"
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ skipping 11 matching lines @@
     Init(NULL, bounds);
     compositor_.reset(new ui::Compositor(context_factory,
                                          base::ThreadTaskRunnerHandle::Get()));
     compositor_->SetAcceleratedWidget(hwnd());
     compositor_->SetScaleAndSize(1.0f, GetSize());
   }
 
   ~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:
   CR_BEGIN_MSG_MAP_EX(TestCompositorHostWin)
     CR_MSG_WM_PAINT(OnPaint)
   CR_END_MSG_MAP()
 
   void OnPaint(HDC dc) {
     compositor_->ScheduleFullRedraw();
     ValidateRect(hwnd(), NULL);
@@ skipping 10 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(TestCompositorHostWin);
 };
 
 TestCompositorHost* TestCompositorHost::Create(
     const gfx::Rect& bounds,
     ui::ContextFactory* context_factory) {
   return new TestCompositorHostWin(bounds, context_factory);
 }
 
 }  // namespace ui