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

components/infobars/core/infobar.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 COMPONENTS_INFOBARS_CORE_INFOBAR_H_
 #define COMPONENTS_INFOBARS_CORE_INFOBAR_H_
 
 #include <utility>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 39 matching lines @@
   static const int kDefaultArrowTargetHalfWidth;
   static const int kMaximumArrowTargetHalfWidth;
 
   explicit InfoBar(scoped_ptr<InfoBarDelegate> delegate);
   virtual ~InfoBar();
 
   static SkColor GetTopColor(InfoBarDelegate::Type infobar_type);
   static SkColor GetBottomColor(InfoBarDelegate::Type infobar_type);
 
   InfoBarManager* owner() { return owner_; }
-  InfoBarDelegate* delegate() { return delegate_.get(); }
-  const InfoBarDelegate* delegate() const { return delegate_.get(); }
+  InfoBarDelegate* delegate() const { return delegate_.get(); }
   void set_container(InfoBarContainer* container) { container_ = container; }
 
   // Sets |owner_|.  This also calls StoreActiveEntryUniqueID() on |delegate_|.
   // This must only be called once as there's no way to extract an infobar from
   // its owner without deleting it, for reparenting in another tab.
   void SetOwner(InfoBarManager* owner);
 
   // Makes the infobar visible.  If |animate| is true, the infobar is then
   // animated to full size.
   void Show(bool animate);
@@ skipping 71 matching lines @@
   int arrow_half_width_;     // Includes only fill.
   int bar_height_;           // Includes both fill and bottom separator.
   int bar_target_height_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBar);
 };
 
 }  // namespace infobars
 
 #endif  // COMPONENTS_INFOBARS_CORE_INFOBAR_H_