Allow message center and related bubbles to render on Windows.

ui/views/controls/slide_out_view_impl.h

+// 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.
+
+#ifndef UI_VIEWS_CONTROLS_SLIDE_OUT_VIEW_IMPL_H_
+#define UI_VIEWS_CONTROLS_SLIDE_OUT_VIEW_IMPL_H_
+
+#include "ui/views/controls/slide_out_view.h"
+#include "ui/views/view.h"
+#include "ui/views/views_export.h"
+
+namespace views {
+
+// SlideOutViewImpl implements the view transformations that accompany a
+// swipe out gesture.
+class SlideOutViewImpl : public SlideOutView::Impl {
+ public:
+  SlideOutViewImpl(SlideOutView* view);
+  virtual ~SlideOutViewImpl();
+
+  // Used when the scroll amount changes, this method should transform |view|

[msw, 2013/01/17 02:28:30]

nit: These comments should go with the pure virtual decls.
Instead, comment here: // Overridden from SlideOutView::Impl:

[dewittj, 2013/01/17 21:25:18]

Gone.

+  // appropriately.
+  virtual void TransformView(float scroll_amount) OVERRIDE;
+  // Restores the view to its original state.
+  virtual void RestoreView() OVERRIDE;
+  // Completes the slideout animation.
+  virtual void HideView(SlideOutView::SlideDirection direction) OVERRIDE;
+
+ private:
+  views::SlideOutView* view_;
+
+  DISALLOW_COPY_AND_ASSIGN(SlideOutViewImpl);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_CONTROLS_SLIDE_OUT_VIEW_IMPL_H_
+
+