Replace c/b/nss_context by a KeyedService.

chrome/browser/chromeos/net/cert_profile_filter.cc

+// 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.
+
+#include "chrome/browser/chromeos/net/cert_profile_filter.h"
+
+#include "base/bind.h"
+#include "components/cert_database/public/cert_database_service_io_part.h"
+#include "net/cert/nss_cert_database.h"
+#include "net/cert/nss_profile_filter_chromeos.h"
+
+namespace chromeos {
+
+namespace {
+
+class ProfileFilterFactory : public net::NSSProfileFilterChromeOSFactory {
+ public:
+  explicit ProfileFilterFactory(
+      const base::WeakPtr<cert_database::CertDatabaseServiceIOPart>& cert_db_io)
+      : cert_db_io_(cert_db_io) {}
+
+  virtual scoped_ptr<net::NSSProfileFilterChromeOS> CreateFilter(
+      const base::Callback<void(const net::NSSProfileFilterChromeOS&)>&
+          callback) override {
+    if (!cert_db_io_)
+      return make_scoped_ptr(new net::NSSProfileFilterChromeOS);
+
+    net::NSSCertDatabase* cert_db = cert_db_io_->GetNSSCertDatabase(
+        base::Bind(&DidGetNSSCertDatabase, callback));
+    if (cert_db)
+      return CreateFilterInternal(cert_db);
+    return scoped_ptr<net::NSSProfileFilterChromeOS>();

[mattm, 2014/10/18 00:45:15]

return nullptr

[pneubeck (no reviews), 2014/10/21 09:22:09]

Done.

+  }
+
+ private:
+  static void DidGetNSSCertDatabase(
+      const base::Callback<void(const net::NSSProfileFilterChromeOS&)>&
+          callback,
+      net::NSSCertDatabase* cert_db) {
+    callback.Run(*CreateFilterInternal(cert_db));
+  }
+
+  static scoped_ptr<net::NSSProfileFilterChromeOS> CreateFilterInternal(
+      net::NSSCertDatabase* nss_cert_db) {
+    scoped_ptr<net::NSSProfileFilterChromeOS> filter(
+        new net::NSSProfileFilterChromeOS);
+    filter->Init(nss_cert_db->GetPublicSlot(),
+                 nss_cert_db->GetPrivateSlot(),
+                 nss_cert_db->GetSystemSlot());
+    return filter.Pass();
+  }
+
+  base::WeakPtr<cert_database::CertDatabaseServiceIOPart> cert_db_io_;
+};
+
+}  // namespace
+
+scoped_ptr<net::NSSProfileFilterChromeOSFactory> CreateProfileFilterFactory(
+    const base::WeakPtr<cert_database::CertDatabaseServiceIOPart>& cert_db_io) {
+  return scoped_ptr<net::NSSProfileFilterChromeOSFactory>(
+      new ProfileFilterFactory(cert_db_io));

[mattm, 2014/10/18 00:45:15]

I think you can use make_scoped_ptr for this case now.

[pneubeck (no reviews), 2014/10/21 09:22:08]

Done.

+}
+
+}  // namespace chromeos