webcrypto: Add ECDSA algorithm (chromium-side)

content/child/webcrypto/status.cc

Index: content/child/webcrypto/status.cc
diff --git a/content/child/webcrypto/status.cc b/content/child/webcrypto/status.cc
index a7afdb3c063968da78fbcb626eaaabef99a04ca5..3de50cb48606059df02c5ed4748ba80c184fe795 100644
--- a/content/child/webcrypto/status.cc
+++ b/content/child/webcrypto/status.cc
@@ -243,6 +243,23 @@ Status Status::ErrorCreateKeyBadUsages() {
                 "Cannot create a key using the specified key usages.");
 }
 
+Status Status::ErrorImportedEcKeyIncorrectCurve() {
+  return Status(
+      blink::WebCryptoErrorTypeData,
+      "The imported EC key specifies a different curve than requested");
+}
+
+Status Status::ErrorJwkIncorrectCrv() {
+  return Status(
+      blink::WebCryptoErrorTypeData,
+      "The JWK's \"crv\" member specifies a different curve than requested");
+}
+
+Status Status::ErrorEcKeyInvalid() {
+  return Status(blink::WebCryptoErrorTypeData,
+                "The imported EC key is invalid");
+}
+
 Status::Status(blink::WebCryptoErrorType error_type,
                const std::string& error_details_utf8)
     : type_(TYPE_ERROR),