Reuse WebCrypto's normalizeCryptoAlgorithm in enterprise.platformKeys.

chrome/renderer/extensions/enterprise_platform_keys_natives.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 CHROME_RENDERER_EXTENSIONS_ENTERPRISE_PLATFORM_KEYS_NATIVES_H_
+#define CHROME_RENDERER_EXTENSIONS_ENTERPRISE_PLATFORM_KEYS_NATIVES_H_
+
+#include "extensions/renderer/object_backed_native_handler.h"
+#include "v8/include/v8.h"
+
+namespace extensions {
+class ScriptContext;
+
+class EnterprisePlatformKeysNatives : public ObjectBackedNativeHandler {
+ public:
+  explicit EnterprisePlatformKeysNatives(ScriptContext* context);
+
+ private:
+  // Normalizes algorithm parameters, and then validates the expected parameters
+  // for the algorithm/operation combination.
+  // Expects the following arguments in |call_info|:
+  //   |parameters|: An object containing the parameters to normalize.
+  //   |operation|: A string describing the operation. Supported operations are
+  //     "GenerateKey", "Sign" and "Verify".
+  // Returns the normalized dictionary on success, or null if some required
+  // parameters are missing or not supported.
+  void NormalizeAlgorithm(const v8::FunctionCallbackInfo<v8::Value>& call_info);
+
+  DISALLOW_COPY_AND_ASSIGN(EnterprisePlatformKeysNatives);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_RENDERER_EXTENSIONS_ENTERPRISE_PLATFORM_KEYS_NATIVES_H_