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

apps/ui/views/native_app_window_views.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 APPS_UI_VIEWS_NATIVE_APP_WINDOW_VIEWS_H_
 #define APPS_UI_VIEWS_NATIVE_APP_WINDOW_VIEWS_H_
 
 #include "apps/size_constraints.h"
 #include "apps/ui/native_app_window.h"
 #include "base/observer_list.h"
@@ skipping 109 matching lines @@
   virtual void RenderViewCreated(
       content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void RenderViewHostChanged(
       content::RenderViewHost* old_host,
       content::RenderViewHost* new_host) OVERRIDE;
 
   // views::View implementation.
   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) OVERRIDE;
-  virtual gfx::Size GetMinimumSize() OVERRIDE;
+  virtual gfx::Size GetMinimumSize() const OVERRIDE;
   virtual gfx::Size GetMaximumSize() OVERRIDE;
   virtual void OnFocus() OVERRIDE;
 
   // NativeAppWindow implementation.
   virtual void SetFullscreen(int fullscreen_types) OVERRIDE;
   virtual bool IsFullscreenOrPending() const OVERRIDE;
   virtual bool IsDetached() const OVERRIDE;
   virtual void UpdateWindowIcon() OVERRIDE;
   virtual void UpdateWindowTitle() OVERRIDE;
   virtual void UpdateBadgeIcon() OVERRIDE;
@@ skipping 43 matching lines @@
   views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 
   ObserverList<web_modal::ModalDialogHostObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeAppWindowViews);
 };
 
 }  // namespace apps
 
 #endif  // APPS_UI_VIEWS_NATIVE_APP_WINDOW_VIEWS_H_