Make back forward menu model a MenuModel....

chrome/browser/gtk/back_forward_menu_model_gtk.cc

-// Copyright (c) 2009 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/gtk/back_forward_menu_model_gtk.h"
-
-#include "app/l10n_util.h"
-#include "base/string_util.h"
-#include "chrome/browser/gtk/back_forward_button_gtk.h"
-
-// Might want to vary this by locale.
-static const size_t kMaxChars = 50;
-
-BackForwardMenuModelGtk::BackForwardMenuModelGtk(Browser* browser,
-                                                 ModelType model_type,
-                                                 BackForwardButtonGtk* button)
-    : BackForwardMenuModel(browser, model_type),
-      button_(button) {
-}
-
-int BackForwardMenuModelGtk::GetItemCount() const {
-  return GetTotalItemCount();
-}
-
-bool BackForwardMenuModelGtk::IsItemSeparator(int command_id) const {
-  return IsSeparator(command_id);
-}
-
-std::string BackForwardMenuModelGtk::GetLabel(int command_id) const {
-  std::wstring item_label_wstr = UTF16ToWideHack(GetItemLabel(command_id));
-  // This breaks on word boundaries. Ideally we would break on character
-  // boundaries.
-  item_label_wstr = l10n_util::TruncateString(item_label_wstr, kMaxChars);
-  return WideToUTF8(item_label_wstr);
-}
-
-bool BackForwardMenuModelGtk::HasIcon(int command_id) const {
-  return ItemHasIcon(command_id);
-}
-
-const SkBitmap* BackForwardMenuModelGtk::GetIcon(int command_id) const {
-  return &GetItemIcon(command_id);
-}
-
-bool BackForwardMenuModelGtk::IsCommandEnabled(int command_id) const {
-  return ItemHasCommand(command_id);
-}
-
-void BackForwardMenuModelGtk::ExecuteCommand(int command_id) {
-  ExecuteCommandById(command_id);
-}
-
-void BackForwardMenuModelGtk::StoppedShowing() {
-  if (button_)
-    button_->StoppedShowingMenu();
-}
-
-bool BackForwardMenuModelGtk::AlwaysShowImages() const {
-  return true;
-}