Win 10 Inactive toast experiment metrics and storage modifications.

chrome/installer/util/experiment_metrics.cc

+// Copyright 2017 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/installer/util/experiment_metrics.h"
+
+namespace installer {
+
+bool ExperimentMetrics::InInitialState() const {
+  return state < kGroupAssigned;
+}
+
+bool ExperimentMetrics::InTerminalState() const {
+  return state == kSelectedNoThanks || state == kSelectedOpenChromeAndCrash ||
+         state == kSelectedOpenChromeAndNoCrash || state == kSelectedClose ||
+         state == kUserLogOff;
+}
+
+void ExperimentMetrics::SetState(State state) {
+  this->state = state;
+}
+
+}  // namespace installer