Remember the clear browsing data combo box selection.

chrome/browser/views/clear_browsing_data.cc

 // Copyright (c) 2006-2008 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/views/clear_browsing_data.h"
 
 #include "chrome/app/locales/locale_settings.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/template_url_model.h"
 #include "chrome/browser/views/standard_layout.h"
@@ skipping 80 matching lines @@
       AddCheckbox(l10n_util::GetString(IDS_DEL_PASSWORDS_CHKBOX),
       profile_->GetPrefs()->GetBoolean(prefs::kDeletePasswords));
 
   // Add a label which appears before the combo box for the time period.
   time_period_label_ = new views::Label(
       l10n_util::GetString(IDS_CLEAR_BROWSING_DATA_TIME_LABEL));
   AddChildView(time_period_label_);
 
   // Add the combo box showing how far back in time we want to delete.
   time_period_combobox_ = new views::ComboBox(this);
+  time_period_combobox_->SetSelectedItem(profile_->GetPrefs()->GetInteger(
+                                          prefs::kDeleteTimePeriod));
+  time_period_combobox_->SetListener(this);
   AddChildView(time_period_combobox_);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ClearBrowsingDataView, views::View implementation:
 
 gfx::Size ClearBrowsingDataView::GetPreferredSize() {
   return gfx::Size(views::Window::GetLocalizedContentsSize(
       IDS_CLEARDATA_DIALOG_WIDTH_CHARS,
       IDS_CLEARDATA_DIALOG_HEIGHT_LINES));
@@ skipping 184 matching lines @@
     case 0: return l10n_util::GetString(IDS_CLEAR_DATA_DAY);
     case 1: return l10n_util::GetString(IDS_CLEAR_DATA_WEEK);
     case 2: return l10n_util::GetString(IDS_CLEAR_DATA_4WEEKS);
     case 3: return l10n_util::GetString(IDS_CLEAR_DATA_EVERYTHING);
     default: NOTREACHED() << L"Missing item";
              return L"?";
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// ClearBrowsingDataView, views::ComboBoxListener implementation:
+
+void ClearBrowsingDataView::ItemChanged(views::ComboBox* sender,
+                                        int prev_index, int new_index) {
+  if (sender == time_period_combobox_ && prev_index != new_index)
+    profile_->GetPrefs()->SetInteger(prefs::kDeleteTimePeriod, new_index);
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // ClearBrowsingDataView, views::ButtonListener implementation:
 
 void ClearBrowsingDataView::ButtonPressed(views::NativeButton* sender) {
   if (sender == del_history_checkbox_)
     profile_->GetPrefs()->SetBoolean(prefs::kDeleteBrowsingHistory,
         del_history_checkbox_->IsSelected() ? true : false);
   else if (sender == del_downloads_checkbox_)
     profile_->GetPrefs()->SetBoolean(prefs::kDeleteDownloadHistory,
         del_downloads_checkbox_->IsSelected() ? true : false);
   else if (sender == del_cache_checkbox_)
@@ skipping 87 matching lines @@
   remover_->Remove(remove_mask);
 }
 
 void ClearBrowsingDataView::OnBrowsingDataRemoverDone() {
   // No need to remove ourselves as an observer as BrowsingDataRemover deletes
   // itself after we return.
   remover_ = NULL;
   window()->Close();
 }