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

components/webcrypto/nss/key_nss.cc

Index: components/webcrypto/nss/key_nss.cc
diff --git a/content/child/webcrypto/nss/key_nss.cc b/components/webcrypto/nss/key_nss.cc
similarity index 88%
rename from content/child/webcrypto/nss/key_nss.cc
rename to components/webcrypto/nss/key_nss.cc
index 0887fe659eae969da86633f5bdd014914d3318d6..92f26c3e1ab689e365da68831d643ec2d60977de 100644
--- a/content/child/webcrypto/nss/key_nss.cc
+++ b/components/webcrypto/nss/key_nss.cc
@@ -2,13 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/child/webcrypto/nss/key_nss.h"
+#include "components/webcrypto/nss/key_nss.h"
 
-#include "content/child/webcrypto/crypto_data.h"
-#include "content/child/webcrypto/status.h"
-#include "content/child/webcrypto/webcrypto_util.h"
-
-namespace content {
+#include "components/webcrypto/crypto_data.h"
+#include "components/webcrypto/status.h"
+#include "components/webcrypto/webcrypto_util.h"
 
 namespace webcrypto {
 
@@ -85,5 +83,3 @@ PrivateKeyNss::PrivateKeyNss(crypto::ScopedSECKEYPrivateKey key,
 }
 
 }  // namespace webcrypto
-
-}  // namespace content