html_viewer: Move webcrypto to a place where html_viewer can use it.

components/webcrypto/algorithm_implementation.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/algorithm_implementation.h"
+#include "components/webcrypto/algorithm_implementation.h"
 
-#include "content/child/webcrypto/status.h"
-
-namespace content {
+#include "components/webcrypto/status.h"
 
 namespace webcrypto {
 
 AlgorithmImplementation::~AlgorithmImplementation() {
 }
 
 Status AlgorithmImplementation::Encrypt(
     const blink::WebCryptoAlgorithm& algorithm,
     const blink::WebCryptoKey& key,
     const CryptoData& data,
@@ skipping 170 matching lines @@
     const blink::WebCryptoKeyAlgorithm& algorithm,
     blink::WebCryptoKeyType type,
     bool extractable,
     blink::WebCryptoKeyUsageMask usages,
     const CryptoData& key_data,
     blink::WebCryptoKey* key) const {
   return Status::ErrorUnsupported();
 }
 
 }  // namespace webcrypto
-
-}  // namespace content