ui/base/models: Make ComboboxModel::GetItemCount() a constant function.

chrome/browser/ui/views/uninstall_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/uninstall_view.h"
 
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/string16.h"
 #include "base/utf_string_conversions.h"
@@ skipping 124 matching lines @@
 }
 
 string16 UninstallView::GetWindowTitle() const {
   return l10n_util::GetStringUTF16(IDS_UNINSTALL_CHROME);
 }
 
 views::View* UninstallView::GetContentsView() {
   return this;
 }
 
-int UninstallView::GetItemCount() {
+int UninstallView::GetItemCount() const {
   DCHECK(!browsers_->empty());
   return browsers_->size();
 }
 
 string16 UninstallView::GetItemAt(int index) {
   DCHECK_LT(index, static_cast<int>(browsers_->size()));
   BrowsersMap::const_iterator it = browsers_->begin();
   std::advance(it, index);
   return WideToUTF16Hack((*it).first);
 }