Refactor to share more code between OpenSSL and NSS implementations.

content/renderer/webcrypto/crypto_data.cc

+// Copyright (c) 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 "content/renderer/webcrypto/crypto_data.h"
+
+#include "third_party/WebKit/public/platform/WebArrayBuffer.h"
+
+namespace content {
+
+namespace webcrypto {
+
+CryptoData::CryptoData() : bytes_(NULL), byte_length_(0) {}
+
+CryptoData::CryptoData(const unsigned char* bytes, unsigned int byte_length)
+    : bytes_(bytes), byte_length_(byte_length) {}
+
+CryptoData::CryptoData(const std::vector<unsigned char>& bytes)
+    : bytes_(bytes.size() ? &bytes[0] : NULL), byte_length_(bytes.size()) {}
+
+CryptoData::CryptoData(const std::string& bytes)
+    : bytes_(bytes.size() ? reinterpret_cast<const unsigned char*>(bytes.data())
+                          : NULL),
+      byte_length_(bytes.size()) {}
+
+CryptoData::CryptoData(const blink::WebArrayBuffer& buffer)
+    : bytes_(reinterpret_cast<const unsigned char*>(buffer.data())),
+      byte_length_(buffer.byteLength()) {}
+
+}  // namespace webcrypto
+
+}  // namespace content