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

components/webcrypto/webcrypto_impl.h

Index: components/webcrypto/webcrypto_impl.h
diff --git a/content/child/webcrypto/webcrypto_impl.h b/components/webcrypto/webcrypto_impl.h
similarity index 98%
rename from content/child/webcrypto/webcrypto_impl.h
rename to components/webcrypto/webcrypto_impl.h
index c8462dfa158005fc5d912f22fdc1ccedc42ee93a..fb7e9eace4b8dc24da058b8de43c631054310809 100644
--- a/content/child/webcrypto/webcrypto_impl.h
+++ b/components/webcrypto/webcrypto_impl.h
@@ -11,7 +11,8 @@
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 
-namespace content {
+namespace components {
+namespace webcrypto {
 
 // Wrapper around the Blink WebCrypto asynchronous interface, which forwards to
 // the synchronous platform (NSS or OpenSSL) implementation.
@@ -122,6 +123,7 @@ class WebCryptoImpl : public blink::WebCrypto {
   DISALLOW_COPY_AND_ASSIGN(WebCryptoImpl);
 };
 
-}  // namespace content
+}  // namespace webcrypto
+}  // namespace components
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_WEBCRYPTO_IMPL_H_