Prepare to use gfx::RenderText in views::Label.

ui/views/controls/button/label_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_LABEL_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 47 matching lines @@
   void SetFontList(const gfx::FontList& font_list);
 
   // Set the elide behavior of this button.
   void SetElideBehavior(gfx::ElideBehavior elide_behavior);
 
   // Get or set the horizontal alignment used for the button; reversed in RTL.
   // The optional image will lead the text, unless the button is right-aligned.
   gfx::HorizontalAlignment GetHorizontalAlignment() const;
   void SetHorizontalAlignment(gfx::HorizontalAlignment alignment);
 
-  // Set the directionality mode used for the button text.
-  void SetDirectionalityMode(gfx::DirectionalityMode mode);
-
   // Call set_min_size(gfx::Size()) to clear the monotonically increasing size.
   void set_min_size(const gfx::Size& min_size) { min_size_ = min_size; }
   void set_max_size(const gfx::Size& max_size) { max_size_ = max_size; }
 
   // Get or set the option to handle the return key; false by default.
   bool is_default() const { return is_default_; }
   void SetIsDefault(bool is_default);
 
   // Get or set the button's overall style; the default is |STYLE_TEXTBUTTON|.
   ButtonStyle style() const { return style_; }
   void SetStyle(ButtonStyle style);
 
   void SetFocusPainter(scoped_ptr<Painter> focus_painter);
   Painter* focus_painter() { return focus_painter_.get(); }
 
   // View:
   virtual void SetBorder(scoped_ptr<Border> border) OVERRIDE;
   virtual gfx::Size GetPreferredSize() const OVERRIDE;
+  virtual int GetHeightForWidth(int w) const OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
 
  protected:
   ImageView* image() const { return image_; }
   Label* label() const { return label_; }
 
   // Returns the available area for the label and image. Subclasses can change
   // these bounds if they need room to do manual painting.
   virtual gfx::Rect GetChildAreaBounds();
@@ skipping 79 matching lines @@
   bool border_is_themed_border_;
 
   scoped_ptr<Painter> focus_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(LabelButton);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_