Detects network changes. Only for Mac OS X so far. Hooks up TCPClientSocketPool to flush idle sockets on IP address change.

BUG=http://crbug.com/26156
TEST=Run chrome with both network cable and wireless on.  Go to www.google.com, twice.  Verify second time via chrome://net-internals that the second request did not need a TCP_CONNECT_JOB, since we reused idle sockets.  Unplug network cable.  This should flush idle sockets.  Go back to www.google.com.  Check chrome://net-internals.  Verify that there is a TCP_CONNECT_JOB for that request, because there was no idle socket to reuse.

Review URL: http://codereview.chromium.org/460149

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@35107 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 51 insertions, 0 deletions

diff --git a/net/base/network_change_notifier_mac.h b/net/base/network_change_notifier_mac.h
new file mode 100644
index 0000000..cbf0128f
--- /dev/null
+++ b/net/base/network_change_notifier_mac.h
@@ -0,0 +1,51 @@
+// 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.
+
+#ifndef NET_BASE_NETWORK_CHANGE_NOTIFIER_MAC_H_
+#define NET_BASE_NETWORK_CHANGE_NOTIFIER_MAC_H_
+
+#include "base/basictypes.h"
+#include "base/ref_counted.h"
+#include "base/scoped_ptr.h"
+#include "net/base/network_change_notifier.h"
+#include "net/base/network_change_notifier_helper.h"
+
+namespace base {
+class Thread;
+}  // namespace base
+
+namespace net {
+
+class NetworkChangeNotifierMac : public NetworkChangeNotifier {
+ public:
+  NetworkChangeNotifierMac();
+
+  void OnIPAddressChanged() { helper_.OnIPAddressChanged(); }
+
+  // NetworkChangeNotifier methods:
+
+  virtual void AddObserver(Observer* observer) {
+    helper_.AddObserver(observer);
+  }
+
+  virtual void RemoveObserver(Observer* observer) {
+    helper_.RemoveObserver(observer);
+  }
+
+ private:
+  friend class base::RefCounted<NetworkChangeNotifierMac>;
+  
+  virtual ~NetworkChangeNotifierMac();
+
+  // Receives the OS X network change notifications on this thread.
+  const scoped_ptr<base::Thread> notifier_thread_;
+
+  internal::NetworkChangeNotifierHelper helper_;
+
+  DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierMac);
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_NETWORK_CHANGE_NOTIFIER_MAC_H_