Add new certificateProvider extension API.

chrome/browser/extensions/api/certificate_provider/certificate_provider_api.h

+// Copyright 2015 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_EXTENSIONS_API_CERTIFICATE_PROVIDER_CERTIFICATE_PROVIDER_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_CERTIFICATE_PROVIDER_CERTIFICATE_PROVIDER_API_H_
+
+#include "chrome/browser/extensions/chrome_extension_function.h"
+
+namespace extensions {
+
+class CertificateProviderPublishClientCertificatesFunction
+    : public ChromeUIThreadExtensionFunction {
+ private:
+  ~CertificateProviderPublishClientCertificatesFunction() override;
+  ResponseAction Run() override;
+
+  DECLARE_EXTENSION_FUNCTION("certificateProvider.publishClientCertificates",
+                             CERTIFICATEPROVIDER_PUBLISHCLIENTCERTIFICATES);
+};
+
+class CertificateProviderReplyToSignRequestFunction
+    : public ChromeUIThreadExtensionFunction {
+ private:
+  ~CertificateProviderReplyToSignRequestFunction() override;
+  ResponseAction Run() override;
+
+  DECLARE_EXTENSION_FUNCTION("certificateProvider.replyToSignRequest",
+                             CERTIFICATEPROVIDER_REPLYTOSIGNREQUEST);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_PLATFORM_KEYS_PLATFORM_KEYS_API_H_