Remove nss_util dependency from ClientCertStoreChromeOS.

chrome/browser/chromeos/net/client_cert_filter_chromeos.h

Index: chrome/browser/chromeos/net/client_cert_filter_chromeos.h
diff --git a/chrome/browser/chromeos/net/client_cert_filter_chromeos.h b/chrome/browser/chromeos/net/client_cert_filter_chromeos.h
new file mode 100644
index 0000000000000000000000000000000000000000..302a8c959c5ca622175e7746d37c532b5a4706ab
--- /dev/null
+++ b/chrome/browser/chromeos/net/client_cert_filter_chromeos.h
@@ -0,0 +1,73 @@
+// 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 CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_FILTER_CHROMEOS_H_
+#define CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_FILTER_CHROMEOS_H_
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "crypto/scoped_nss_types.h"
+#include "net/cert/nss_profile_filter_chromeos.h"
+#include "net/ssl/client_cert_store_chromeos.h"
+
+namespace chromeos {
+
+// A client certificate filter that filters by applying a
+// NSSProfileFilterChromeOS.
+class ClientCertFilterChromeOS
+    : public net::ClientCertStoreChromeOS::CertFilter {
+ public:
+  // The internal NSSProfileFilterChromeOS will be initialized with the public
+  // and private slot of the user with |username_hash| and with the system slot
+  // if |use_system_slot| is true.
+  ClientCertFilterChromeOS(bool use_system_slot,
+                           const std::string& username_hash);
+  ~ClientCertFilterChromeOS() override;
+
+  // ClientCertStoreChromeOS::CertFilter:
+  bool Init(const base::Closure& callback) override;
+  bool IsCertAllowed(
+      const scoped_refptr<net::X509Certificate>& cert) const override;
+
+ private:
+  // Called back if the system slot was retrieved asynchronously. Continues the
+  // initialization.
+  void GotSystemSlot(crypto::ScopedPK11Slot system_slot);
+
+  // Called back if the private slot was retrieved asynchronously. Continues the
+  // initialization.
+  void GotPrivateSlot(crypto::ScopedPK11Slot private_slot);
+
+  // If the required slots (|private_slot_| and conditionally |system_slot_|)
+  // are available, initializes |nss_profile_filter_| and returns true.
+  // Otherwise returns false.
+  bool InitIfSlotsAvailable();
+
+  // True once Init() was called.
+  bool init_called_;
+
+  // The callback provided to Init(), which may be null. Reset after the filter
+  // is initialized.
+  base::Closure init_callback_;
+
+  bool use_system_slot_;
+  std::string username_hash_;
+
+  // Used to store the system slot, if required, for initialization. Will be
+  // null after the filter is initialized.
+  crypto::ScopedPK11Slot system_slot_;
+
+  // Used to store the private slot for initialization. Will be null after the
+  // filter is initialized.
+  crypto::ScopedPK11Slot private_slot_;
+
+  net::NSSProfileFilterChromeOS nss_profile_filter_;
+  base::WeakPtrFactory<ClientCertFilterChromeOS> weak_ptr_factory_;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_FILTER_CHROMEOS_H_