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

components/webcrypto/generate_key_result.cc

Index: components/webcrypto/generate_key_result.cc
diff --git a/content/child/webcrypto/generate_key_result.cc b/components/webcrypto/generate_key_result.cc
similarity index 93%
rename from content/child/webcrypto/generate_key_result.cc
rename to components/webcrypto/generate_key_result.cc
index 3c61657eb55fc71c8fc2fc654073935268202bde..74a356f1428215017c406604e43ca128da648220 100644
--- a/content/child/webcrypto/generate_key_result.cc
+++ b/components/webcrypto/generate_key_result.cc
@@ -2,11 +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/generate_key_result.h"
+#include "components/webcrypto/generate_key_result.h"
 
 #include "base/logging.h"
 
-namespace content {
+namespace components {
 
 namespace webcrypto {
 
@@ -60,4 +60,4 @@ void GenerateKeyResult::Complete(blink::WebCryptoResult* out) const {
 
 }  // namespace webcrypto
 
-}  // namespace content
+}  // namespace components