[webcrypto] Don't fail JWK import if key_ops contains an unrecognized value.

content/child/webcrypto/webcrypto_util.cc

Index: content/child/webcrypto/webcrypto_util.cc
diff --git a/content/child/webcrypto/webcrypto_util.cc b/content/child/webcrypto/webcrypto_util.cc
index a46961c4e9699ebe6618f5c3ba7413d482f7253f..87ac17465e8639fa40b879cbdaa3d5caa91cbb30 100644
--- a/content/child/webcrypto/webcrypto_util.cc
+++ b/content/child/webcrypto/webcrypto_util.cc
@@ -103,8 +103,8 @@ Status GetWebCryptoUsagesFromJwkKeyOps(
       return Status::ErrorJwkPropertyWrongType(
           base::StringPrintf("key_ops[%d]", static_cast<int>(i)), "string");
     }
-    if (!JwkKeyOpToWebCryptoUsage(key_op, usage_mask))
-      return Status::ErrorJwkUnrecognizedKeyop();
+    // Unrecognized key_ops are silently skipped.
+    ignore_result(JwkKeyOpToWebCryptoUsage(key_op, usage_mask));
   }
   return Status::Success();
 }