Deprecate CredentialRequestOptions.unmediated in favor mediation enum

third_party/WebKit/Source/core/frame/Deprecation.cpp

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
index eaaeaebbc99263d91e68d65e2d2ea4294f80b362..9e57feba393d5fc99995a8cea49200d3a09ebf36 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ b/third_party/WebKit/Source/core/frame/Deprecation.cpp
@@ -407,6 +407,12 @@ String Deprecation::DeprecationMessage(UseCounter::Feature feature) {
       return willBeRemoved("SVGPathElement.getPathSegAtLength", M62,
                            "5638783282184192");
 
+    case UseCounter::kCredentialManagerCredentialRequestOptionsUnmediated:
+      return replacedWillBeRemoved(
+          "The boolean flag CredentialRequestOptions.unmediated",
+          "the CredentialRequestOptions.mediation enum", M62,
+          "6076479909658624");
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();