Message center re-organized

ui/views/shadow_border.h

+// Copyright (c) 2013 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_SHADOW_BORDER_H_
+#define UI_VIEWS_SHADOW_BORDER_H_
+
+#include "third_party/skia/include/core/SkColor.h"
+#include "ui/views/border.h"
+#include "ui/views/views_export.h"
+
+namespace views {
+
+// Creates a css box-shadow like border which fades into SK_ColorTRANSPARENT.
+class VIEWS_EXPORT ShadowBorder : public views::Border {
+ public:
+  ShadowBorder(int blur,
+               SkColor color,
+               int vertical_offset,
+               int horizontal_offset);
+  virtual ~ShadowBorder();
+
+ protected:
+  // Overridden from views::Border:
+  virtual void Paint(const views::View& view, gfx::Canvas* canvas) OVERRIDE;
+  virtual gfx::Insets GetInsets() const OVERRIDE;
+
+ private:
+  // Blur amount of the shadow in pixels. For details on how blur is defined see
+  // comments for blur_ in class ShadowValue.
+  const int blur_;
+
+  // Shadow color.
+  const SkColor color_;
+
+  // Number of pixels to shift shadow to bottom.
+  const int vertical_offset_;
+
+  // Number of pixels to shift shadow to right.
+  const int horizontal_offset_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShadowBorder);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_SHADOW_BORDER_H_