Move parts from enterprise.platformKeysInternal to platformKeysInternal for reuse.

chrome/browser/extensions/api/platform_keys/platform_keys_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_PLATFORM_KEYS_PLATFORM_KEYS_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_PLATFORM_KEYS_PLATFORM_KEYS_API_H_
+
+#include <string>
+
+#include "chrome/browser/extensions/chrome_extension_function.h"
+
+namespace extensions {
+namespace platform_keys {
+
+extern const char kErrorInvalidToken[];
+
+// Returns whether |token_id| references a known Token.
+bool ValidateToken(const std::string& token_id,
+                   std::string* platform_keys_token_id);
+
+// Converts a token id from ::chromeos::platform_keys to the platformKeys API
+// token id.
+std::string PlatformKeysTokenIdToApiId(
+    const std::string& platform_keys_token_id);
+
+}  // namespace platform_keys
+
+class PlatformKeysInternalSignFunction
+    : public ChromeUIThreadExtensionFunction {
+ private:
+  ~PlatformKeysInternalSignFunction() override;
+  ResponseAction Run() override;
+
+  // Called when the signature was generated. If an error occurred,
+  // |signature| will be empty and instead |error_message| be set.
+  void OnSigned(const std::string& signature, const std::string& error_message);
+
+  DECLARE_EXTENSION_FUNCTION("platformKeysInternal.sign",
+                             PLATFORMKEYSINTERNAL_SIGN);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_PLATFORM_KEYS_PLATFORM_KEYS_API_H_