Move cros_network_functions.cc to src/chromeos

chrome/browser/chromeos/cros/network_library_impl_cros.h

 // Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_CROS_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_CROS_H_
 
 #include "base/time.h"
 #include "chrome/browser/chromeos/cros/network_library_impl_base.h"
 
 namespace chromeos {
 
+class CrosNetworkWatcher;
+
 class NetworkLibraryImplCros : public NetworkLibraryImplBase  {
  public:
   NetworkLibraryImplCros();
   virtual ~NetworkLibraryImplCros();
 
   virtual void Init() OVERRIDE;
   virtual bool IsCros() const OVERRIDE;
 
   //////////////////////////////////////////////////////////////////////////////
   // NetworkLibraryImplBase implementation.
@@ skipping 187 matching lines @@
   NetworkWatcherMap monitored_devices_;
 
   base::Time wifi_scan_request_time_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkLibraryImplCros);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_CROS_H_