Add an automatic settings reset banner.

chrome/browser/ui/webui/options/automatic_settings_reset_handler.cc

+// Copyright 2014 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/webui/options/automatic_settings_reset_handler.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/prefs/pref_service.h"
+#include "base/time/time.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/browser/web_ui.h"
+#include "grit/generated_resources.h"
+
+namespace {
+const int kBannerShowTimeInDays = 5;
+}
+
+namespace options {
+
+AutomaticSettingsResetHandler::AutomaticSettingsResetHandler() {}
+AutomaticSettingsResetHandler::~AutomaticSettingsResetHandler() {}
+
+void AutomaticSettingsResetHandler::InitializePage() {
+  const int64 reset_time =
+      g_browser_process->local_state()->GetInt64(
+          prefs::kProfilePreferenceResetTime);
+  if (reset_time != 0) {
+    const base::Time now = base::Time::Now();
+    const base::Time then = base::Time::FromInternalValue(reset_time);
+    if ((now - then).InDays() < kBannerShowTimeInDays)
+      web_ui()->CallJavascriptFunction("AutomaticSettingsResetBanner.show");
+  }
+}
+
+void AutomaticSettingsResetHandler::GetLocalizedValues(
+    base::DictionaryValue* localized_strings) {
+  DCHECK(localized_strings);
+
+  static const OptionsStringResource resources[] = {
+      { "automaticSettingsResetBannerText",
+        IDS_AUTOMATIC_SETTINGS_RESET_BANNER_TEXT },
+      { "automaticSettingsResetLearnMoreUrl",
+        IDS_LEARN_MORE },
+  };
+
+  RegisterStrings(localized_strings, resources, arraysize(resources));
+  localized_strings->SetString(
+      "automaticSettingsResetLearnMoreUrl",
+      chrome::kAutomaticSettingsResetLearnMoreURL);
+}
+
+void AutomaticSettingsResetHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("onDismissedAutomaticSettingsResetBanner",
+      base::Bind(&AutomaticSettingsResetHandler::
+                     OnDismissedAutomaticSettingsResetBanner));
+}
+
+// static

[gab, 2014/02/07 19:38:31]

Still prefer anonymous method (i.e. unnamed namespace in .cc file) to static
method, from style guide:

"If you must define a nonmember function and it is only needed in its .cc file,
use an unnamed namespace or static linkage... " -- but here by "static" they
mean static in .cc file which means it's local to the .cc file; not static as in
static class method.

[robertshield, 2014/02/07 21:21:34]

Already done in current patchset. Apologies for confusion.

+void AutomaticSettingsResetHandler::OnDismissedAutomaticSettingsResetBanner(
+    const base::ListValue* value) {
+  PrefService* local_state = g_browser_process->local_state();
+  local_state->ClearPref(prefs::kProfilePreferenceResetTime);
+}
+
+}  // namespace options