Implemented system tray UI for new account management.

ash/system/user/button_from_view.h

+// Copyright 2014 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 ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_
+#define ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_
+
+#include "base/macros.h"
+
+#include "ui/views/controls/button/custom_button.h"
+
+namespace ash {
+namespace tray {
+
+// This view is used to wrap it's content and transform it into button.
+class ButtonFromView : public views::CustomButton {
+ public:
+  ButtonFromView(views::View* content,
+                 views::ButtonListener* listener,
+                 bool highlight_on_hover);
+  virtual ~ButtonFromView();
+
+  // Called when the border should remain even in the non highlighted state.
+  void ForceBorderVisible(bool show);
+
+  // Overridden from views::View
+  virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
+  virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
+
+  // Check if the item is hovered.
+  bool is_hovered_for_test() { return button_hovered_; }
+
+ private:
+  // Change the hover/active state of the "button" when the status changes.
+  void ShowActive();
+
+  // Content of button.
+  views::View* content_;
+
+  // Whether button should be highligthed on hover.
+  bool highlight_on_hover_;
+
+  // True if button is hovered.
+  bool button_hovered_;
+
+  // True if the border should be always visible.
+  bool show_border_;
+
+  DISALLOW_COPY_AND_ASSIGN(ButtonFromView);
+};
+
+}  // namespace tray
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_