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

chrome/browser/ui/views/extensions/extension_popup.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_EXTENSIONS_EXTENSION_POPUP_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_POPUP_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
@@ skipping 50 matching lines @@
 
   // content::NotificationObserver overrides.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // ExtensionViewViews::Container overrides.
   virtual void OnExtensionSizeChanged(ExtensionViewViews* view) OVERRIDE;
 
   // views::View overrides.
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
   virtual void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) OVERRIDE;
 
   // views::WidgetObserver overrides.
   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
   virtual void OnWidgetActivationChanged(views::Widget* widget,
                                          bool active) OVERRIDE;
 
   // aura::client::ActivationChangeObserver overrides.
   virtual void OnWindowActivated(aura::Window* gained_active,
@@ skipping 32 matching lines @@
   content::NotificationRegistrar registrar_;
 
   base::Callback<void(content::DevToolsAgentHost*, bool)> devtools_callback_;
 
   bool widget_initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPopup);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_POPUP_H_