Refactor WebCrypto code

content/child/webcrypto/openssl/util_openssl.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 "content/child/webcrypto/openssl/util_openssl.h"
+
+#include <openssl/evp.h>
+
 #include "content/child/webcrypto/crypto_data.h"
+#include "content/child/webcrypto/platform_crypto.h"
+#include "crypto/openssl_util.h"
 
 namespace content {
 
 namespace webcrypto {
 
-CryptoData::CryptoData() : bytes_(NULL), byte_length_(0) {}
+void PlatformInit() {
+  crypto::EnsureOpenSSLInit();
+}
 
-CryptoData::CryptoData(const unsigned char* bytes, unsigned int byte_length)
-    : bytes_(bytes), byte_length_(byte_length) {}
+const EVP_MD* GetDigest(blink::WebCryptoAlgorithmId id) {
+  switch (id) {
+    case blink::WebCryptoAlgorithmIdSha1:
+      return EVP_sha1();
+    case blink::WebCryptoAlgorithmIdSha256:
+      return EVP_sha256();
+    case blink::WebCryptoAlgorithmIdSha384:
+      return EVP_sha384();
+    case blink::WebCryptoAlgorithmIdSha512:
+      return EVP_sha512();
+    default:
+      return NULL;
+  }
+}
 
-CryptoData::CryptoData(const std::vector<unsigned char>& bytes)
-    : bytes_(bytes.size() ? &bytes[0] : NULL), byte_length_(bytes.size()) {}
+AlgorithmImplementation* CreatePlatformRsaOaepImplementation() {
+  // TODO(eroman):
+  return NULL;
+}
 
-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::WebVector<unsigned char>& bytes)
-    : bytes_(bytes.data()), byte_length_(bytes.size()) {}
+AlgorithmImplementation* CreatePlatformRsaSsaImplementation() {
+  // TODO(eroman):
+  return NULL;
+}
 
 }  // namespace webcrypto
 
 }  // namespace content