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

chrome/browser/ui/views/infobars/infobar_container_view.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/ui/views/infobars/infobar_container_view.h"
 
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/infobars/infobar_view.h"
 #include "grit/generated_resources.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 
 // static
 const char InfoBarContainerView::kViewClassName[] = "InfoBarContainerView";
 
 InfoBarContainerView::InfoBarContainerView(Delegate* delegate)
     : infobars::InfoBarContainer(delegate) {
   set_id(VIEW_ID_INFO_BAR_CONTAINER);
 }
 
 InfoBarContainerView::~InfoBarContainerView() {
   RemoveAllInfoBarsForDestruction();
 }
 
-gfx::Size InfoBarContainerView::GetPreferredSize() {
+gfx::Size InfoBarContainerView::GetPreferredSize() const {
   int total_height;
   GetVerticalOverlap(&total_height);
   gfx::Size size(0, total_height);
   for (int i = 0; i < child_count(); ++i)
     size.SetToMax(gfx::Size(child_at(i)->GetPreferredSize().width(), 0));
   return size;
 }
 
 const char* InfoBarContainerView::GetClassName() const {
   return kViewClassName;
@@ skipping 20 matching lines @@
     infobars::InfoBar* infobar,
     size_t position) {
   AddChildViewAt(static_cast<InfoBarView*>(infobar),
                  static_cast<int>(position));
 }
 
 void InfoBarContainerView::PlatformSpecificRemoveInfoBar(
     infobars::InfoBar* infobar) {
   RemoveChildView(static_cast<InfoBarView*>(infobar));
 }