Implemented system tray UI for new account management.

ash/system/tray/hover_highlight_view.h

 // Copyright 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 ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
 #define ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
 
 #include "ash/system/tray/actionable_view.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/gfx/font.h"
+#include "ui/gfx/text_constants.h"
 
 namespace views {
 class Label;
 }
 
 namespace ash {
 namespace internal {
 
 class ViewClickListener;
 
 // A view that changes background color on hover, and triggers a callback in the
 // associated ViewClickListener on click. The view can also be forced to
 // maintain a fixed height.
 class HoverHighlightView : public ActionableView {
  public:
   explicit HoverHighlightView(ViewClickListener* listener);
   virtual ~HoverHighlightView();
 
   // Convenience function for adding an icon and a label.  This also sets the
   // accessible name.
   void AddIconAndLabel(const gfx::ImageSkia& image,
                        const base::string16& text,
                        gfx::Font::FontStyle style);
 
   // Convenience function for adding a label with padding on the left for a
   // blank icon.  This also sets the accessible name.
   // Returns label after parenting it.
   views::Label* AddLabel(const base::string16& text,
+                         gfx::HorizontalAlignment alignment,
                          gfx::Font::FontStyle style);
 
   // Convenience function for adding an optional check and a label.  In the
   // absence of a check, padding is added to align with checked items.
   // Returns label after parenting it.
   views::Label* AddCheckableLabel(const base::string16& text,
                                   gfx::Font::FontStyle style,
                                   bool checked);
 
   // Allows view to expand its height.
@@ skipping 34 matching lines @@
   bool checkable_;
   bool checked_;
 
   DISALLOW_COPY_AND_ASSIGN(HoverHighlightView);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_