History UI: Apply the pref that prohibits deleting browsing and download history.

chrome/test/data/webui/history_ui_browsertest.cc

+// Copyright 2013 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/test/data/webui/history_ui_browsertest.h"
+
+#include "base/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/common/pref_names.h"
+
+HistoryUIBrowserTest::HistoryUIBrowserTest() {
+}
+
+HistoryUIBrowserTest::~HistoryUIBrowserTest() {
+}
+
+void HistoryUIBrowserTest::SetDeleteAllowed(bool allowed) {
+  browser()->profile()->GetPrefs()->
+      SetBoolean(prefs::kAllowDeletingBrowserHistory, allowed);
+}