[Chrome OS] Make PrerenderConditionNetwork use NetworkStateHandler

chrome/browser/chromeos/prerender_condition_network.h

 // Copyright (c) 2011 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_PRERENDER_CONDITION_NETWORK_H_
 #define CHROME_BROWSER_CHROMEOS_PRERENDER_CONDITION_NETWORK_H_
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/prerender/prerender_condition.h"
 
 namespace chromeos {
 
 class PrerenderConditionNetwork : public prerender::PrerenderCondition {
  public:
-  // |network_library| must be non-NULL and live longer than |this|.
-  explicit PrerenderConditionNetwork(NetworkLibrary* network_library);
+  PrerenderConditionNetwork();
   virtual ~PrerenderConditionNetwork();
 
   // prerender::PrerenderCondition
   virtual bool CanPrerender() const OVERRIDE;
-
- private:
-  NetworkLibrary* network_library_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PRERENDER_CONDITION_NETWORK_H_