Initial commit of sync engine code to browser/sync....

chrome/browser/sync/notifier/base/network_status_detector_task.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/sync/notifier/base/network_status_detector_task.h"
+
+namespace notifier {
+
+void NetworkStatusDetectorTask::DetectNetworkState() {
+  // If the detection has been finished, then just broadcast the current
+  // state. Otherwise, allow the signal to be sent when the initial
+  // detection is finished.
+  if (initial_detection_done_) {
+    SignalNetworkStateDetected(is_alive_, is_alive_);
+  }
+}
+
+void NetworkStatusDetectorTask::SetNetworkAlive(bool is_alive) {
+  bool was_alive = is_alive_;
+  is_alive_ = is_alive;
+
+  if (!initial_detection_done_ || was_alive != is_alive_) {
+    initial_detection_done_ = true;
+
+    // Tell everyone about the network state change.
+    SignalNetworkStateDetected(was_alive, is_alive_);
+  }
+}
+
+}  // namespace notifier