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

components/webcrypto/nss/key_nss.h

Index: components/webcrypto/nss/key_nss.h
diff --git a/content/child/webcrypto/nss/key_nss.h b/components/webcrypto/nss/key_nss.h
similarity index 93%
rename from content/child/webcrypto/nss/key_nss.h
rename to components/webcrypto/nss/key_nss.h
index 9eaf7c427b081030ff1497b4e2ae8b5b285944a2..e3127d8d58fe003f32b711cce6fb9c1aef512602 100644
--- a/content/child/webcrypto/nss/key_nss.h
+++ b/components/webcrypto/nss/key_nss.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_CHILD_WEBCRYPTO_NSS_KEY_NSS_H_
-#define CONTENT_CHILD_WEBCRYPTO_NSS_KEY_NSS_H_
+#ifndef COMPONENTS_WEBCRYPTO_NSS_KEY_NSS_H_
+#define COMPONENTS_WEBCRYPTO_NSS_KEY_NSS_H_
 
 #include <stdint.h>
 #include <vector>
@@ -11,8 +11,6 @@
 #include "crypto/scoped_nss_types.h"
 #include "third_party/WebKit/public/platform/WebCryptoKey.h"
 
-namespace content {
-
 namespace webcrypto {
 
 class CryptoData;
@@ -104,6 +102,4 @@ class PrivateKeyNss : public KeyNss {
 
 }  // namespace webcrypto
 
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEBCRYPTO_NSS_KEY_NSS_H_
+#endif  // COMPONENTS_WEBCRYPTO_NSS_KEY_NSS_H_