Refactor WebCrypto code

content/child/webcrypto/openssl/aes_kw_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/browser/battery_status/battery_status_manager.h"
-
 #include "base/logging.h"
+#include "content/child/webcrypto/openssl/aes_key_openssl.h"
+#include "content/child/webcrypto/status.h"
 
 namespace content {
 
+namespace webcrypto {
+
 namespace {
 
-class BatteryStatusManagerDefault : public BatteryStatusManager {
+class AesKwImplementation : public AesAlgorithm {
  public:
-  explicit BatteryStatusManagerDefault(
-      const BatteryStatusService::BatteryUpdateCallback& callback) {}
-  virtual ~BatteryStatusManagerDefault() {}
+  AesKwImplementation() : AesAlgorithm("KW") {}
 
- private:
-  // BatteryStatusManager:
-  virtual bool StartListeningBatteryChange() OVERRIDE {
-    NOTIMPLEMENTED();
-    return false;
+  virtual Status Encrypt(const blink::WebCryptoAlgorithm& algorithm,
+                         const blink::WebCryptoKey& key,
+                         const CryptoData& data,
+                         std::vector<uint8>* buffer) const OVERRIDE {
+    // TODO(eroman):
+    return Status::ErrorUnsupported();
   }
 
-  virtual void StopListeningBatteryChange() OVERRIDE { NOTIMPLEMENTED(); }
-
-  DISALLOW_COPY_AND_ASSIGN(BatteryStatusManagerDefault);
+  virtual Status Decrypt(const blink::WebCryptoAlgorithm& algorithm,
+                         const blink::WebCryptoKey& key,
+                         const CryptoData& data,
+                         std::vector<uint8>* buffer) const OVERRIDE {
+    // TODO(eroman):
+    return Status::ErrorUnsupported();
+  }
 };
 
 }  // namespace
 
-// static
-scoped_ptr<BatteryStatusManager> BatteryStatusManager::Create(
-    const BatteryStatusService::BatteryUpdateCallback& callback) {
-  return scoped_ptr<BatteryStatusManager>(
-      new BatteryStatusManagerDefault(callback));
+AlgorithmImplementation* CreatePlatformAesKwImplementation() {
+  return new AesKwImplementation;
 }
 
+}  // namespace webcrypto
+
 }  // namespace content