Update ConstrainedWindowViews appearance according to mock

ui/views/controls/button/web_style_text_button.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_BUTTON_WEB_STYLE_TEXT_BUTTON_H_
+#define UI_VIEWS_CONTROLS_BUTTON_WEB_STYLE_TEXT_BUTTON_H_
+
+#include "ui/views/controls/button/text_button.h"
+
+namespace views {
+
+class WebStyleTextButtonBackground;
+class WebStyleTextButtonBorder;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// WebStyleTextButton
+//
+//  Similar to TextButton, but rendered with in a style similar to
+//  Chrome WebUI.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+class VIEWS_EXPORT WebStyleTextButton : public TextButton {

[Ben Goodger (Google), 2012/09/17 22:37:26]

Can we avoid adding Yet-Another-Button-Subclass and instead do these
customizations as:

- the background/border etc stuff that you have in the .cc file
- improvements to the TextButton.

[Mike Wittman, 2012/09/21 22:53:18]

Yes.  I've refactored the necessary functionality into button base classes.

+ public:
+  // The button's class name.
+  static const char kViewClassName[];
+
+  WebStyleTextButton(ButtonListener* listener, const string16& title);
+
+  // Overridden from View
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+
+  // Overridden from CustomButton
+  virtual void StateChanged() OVERRIDE;
+
+  // Overridden from TextButton:
+  virtual std::string GetClassName() const OVERRIDE;
+
+ private:
+  void SetBackgroundForState(ButtonState state);
+  void SetShadowForState(ButtonState state);
+  void SetBorderColorForState(ButtonState state);
+
+  ButtonState prior_state_;
+  // Weak pointer to typed background instance.
+  WebStyleTextButtonBackground* web_style_background_;
+  // Weak pointer to typed border instance.
+  WebStyleTextButtonBorder* web_style_border_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebStyleTextButton);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_CONTROLS_BUTTON_WEB_STYLE_TEXT_BUTTON_H_