views: Make view::Views::GetPreferredSize() const.

ui/message_center/views/bounded_label.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 UI_MESSAGE_CENTER_BOUNDED_LABEL_H_
 #define UI_MESSAGE_CENTER_BOUNDED_LABEL_H_
 
 #include <list>
 #include <map>
 
@@ skipping 33 matching lines @@
 
   int GetLineHeight() const;
   int GetLineLimit() const;
 
   // Pass in a -1 width to use the preferred width, a -1 limit to skip limits.
   int GetLinesForWidthAndLimit(int width, int limit);
   gfx::Size GetSizeForWidthAndLines(int width, int lines);
 
   // Overridden from views::View.
   virtual int GetBaseline() const OVERRIDE;
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual int GetHeightForWidth(int width) OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
+  virtual int GetHeightForWidth(int width) const OVERRIDE;
   virtual void Paint(gfx::Canvas* canvas,
                      const views::CullSet& cull_set) OVERRIDE;
   virtual bool HitTestRect(const gfx::Rect& rect) const OVERRIDE;
   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
 
  protected:
   // Overridden from views::View.
   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
   virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE;
 
  private:
   friend class test::BoundedLabelTest;
 
   base::string16 GetWrappedTextForTest(int width, int lines);
 
   scoped_ptr<InnerBoundedLabel> label_;
   int line_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(BoundedLabel);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_BOUNDED_LABEL_H_