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

chrome/browser/ui/views/frame/opaque_browser_frame_view.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 CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
@@ skipping 27 matching lines @@
  public:
   // Constructs a non-client view for an BrowserFrame.
   OpaqueBrowserFrameView(BrowserFrame* frame, BrowserView* browser_view);
   virtual ~OpaqueBrowserFrameView();
 
   // Overridden from BrowserNonClientFrameView:
   virtual gfx::Rect GetBoundsForTabStrip(views::View* tabstrip) const OVERRIDE;
   virtual int GetTopInset() const OVERRIDE;
   virtual int GetThemeBackgroundXInset() const OVERRIDE;
   virtual void UpdateThrobber(bool running) OVERRIDE;
-  virtual gfx::Size GetMinimumSize() OVERRIDE;
+  virtual gfx::Size GetMinimumSize() const OVERRIDE;
 
   // Overridden from views::NonClientFrameView:
   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const OVERRIDE;
   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
   virtual void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask)
       OVERRIDE;
   virtual void ResetWindowControls() OVERRIDE;
   virtual void UpdateWindowIcon() OVERRIDE;
@@ skipping 112 matching lines @@
   // Background painter for the window frame.
   scoped_ptr<views::FrameBackground> frame_background_;
 
   // Observer that handles platform dependent configuration.
   scoped_ptr<OpaqueBrowserFrameViewPlatformSpecific> platform_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(OpaqueBrowserFrameView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_