WebCrypto: Implement digest() using NSS

content/renderer/webcrypto_impl.cc

Index: content/renderer/webcrypto_impl.cc
diff --git a/content/renderer/webcrypto_impl.cc b/content/renderer/webcrypto_impl.cc
index 80c551240eeb141a4c5b305f9485e5df2c241b6e..8cefd104e89fed018fd10fab9805966c7fb61369 100644
--- a/content/renderer/webcrypto_impl.cc
+++ b/content/renderer/webcrypto_impl.cc
@@ -4,24 +4,46 @@
 
 #include "content/renderer/webcrypto_impl.h"
 
+// TODO(bryaneyler): Also include these in OpenSSL build.  Issue 267888.
+#if defined(USE_NSS)
+#include "content/renderer/webcrypto_digest.h"
+#endif
+
+#include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 
 namespace content {
 
-WebKit::WebCryptoOperation* WebCryptoImpl::digest(
-    const WebKit::WebCryptoAlgorithm& algorithm) {
+void WebCryptoImpl::digest(
+    const WebKit::WebCryptoAlgorithm& algorithm,
+    WebKit::WebCryptoOperationResult& result) {
+// TODO(bryaneyler): Also include these in OpenSSL build.  Issue 267888.
+#if defined(USE_NSS)
   switch (algorithm.id()) {
     case WebKit::WebCryptoAlgorithmIdSha1:
     case WebKit::WebCryptoAlgorithmIdSha224:
     case WebKit::WebCryptoAlgorithmIdSha256:
     case WebKit::WebCryptoAlgorithmIdSha384:
-    case WebKit::WebCryptoAlgorithmIdSha512:
-      // TODO(eroman): Implement.
-      return NULL;
+    case WebKit::WebCryptoAlgorithmIdSha512: {
+      scoped_ptr<WebCryptoDigest> operation(
+          new WebCryptoDigest(result));
+
+      if (!operation->Initialize(algorithm)) {
+        result.initializationFailed();
+      } else {
+        result.initializationSucceeded(operation.release());
+      }
+      return;
+    }
     default:
       // Not a digest algorithm.
-      return NULL;
+      result.initializationFailed();
+      return;
   }
+#else
+  // No way to process.
+  result.initializationFailed();
+#endif
 }
 
 }  // namespace content