Refactor client cert private key handling.

chromecast/browser/cast_network_delegate.h

 // Copyright 2014 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 CHROMECAST_BROWSER_CAST_NETWORK_DELEGATE_H_
 #define CHROMECAST_BROWSER_CAST_NETWORK_DELEGATE_H_
 
 #include "base/macros.h"
 #include "net/base/network_delegate_impl.h"
 
 namespace net {
+class SSLPrivateKey;
 class X509Certificate;
 }
 
 namespace chromecast {
 namespace shell {
 
 class CastNetworkDelegate : public net::NetworkDelegateImpl {
  public:
   static CastNetworkDelegate* Create();
   static net::X509Certificate* DeviceCert();
+  static net::SSLPrivateKey* DeviceKey();
 
   CastNetworkDelegate();
   ~CastNetworkDelegate() override;
 
   virtual void Initialize(bool use_sync_signing) = 0;
 
   virtual bool IsWhitelisted(const GURL& gurl, int render_process_id,
                              bool for_device_auth) const = 0;
 
  private:
   // net::NetworkDelegate implementation:
   bool OnCanAccessFile(const net::URLRequest& request,
                        const base::FilePath& original_path,
                        const base::FilePath& absolute_path) const override;
 
   DISALLOW_COPY_AND_ASSIGN(CastNetworkDelegate);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_CAST_NETWORK_DELEGATE_H_