[Aura] Implement views-based applist.

chrome/browser/chromeos/drop_shadow_label.h

-// Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_DROP_SHADOW_LABEL_H_
-#define CHROME_BROWSER_CHROMEOS_DROP_SHADOW_LABEL_H_
-#pragma once
-
-#include "ui/gfx/font.h"
-#include "ui/views/controls/label.h"
-
-namespace chromeos {
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// DropShadowLabel class
-//
-// A drop shadow label is a view subclass that can display a string
-// with a drop shadow.
-//
-/////////////////////////////////////////////////////////////////////////////
-class DropShadowLabel : public views::Label  {
- public:
-  DropShadowLabel();
-
-  // Sets the size of the drop shadow drawn under the text.
-  // Defaults to two.  Note that this is a really simplistic drop
-  // shadow -- it gets more expensive to draw the larger it gets,
-  // since it simply draws more copies of the string.  For instance,
-  // for a value of two, the string is draw seven times.  In general,
-  // it is drawn three extra times for each increment of |size|.
-  void SetDropShadowSize(int size);
-
-  // Return the size of the drop shadow in pixels.
-  int drop_shadow_size() const { return drop_shadow_size_; }
-
-  // Overridden to paint the text differently from the base class.
-  virtual void PaintText(gfx::Canvas* canvas,
-                         const string16& text,
-                         const gfx::Rect& text_bounds,
-                         int flags) OVERRIDE;
-
- protected:
-  virtual gfx::Size GetTextSize() const OVERRIDE;
-
- private:
-  int drop_shadow_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(DropShadowLabel);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_DROP_SHADOW_LABEL_H_