Fix problems with cross-origin redirects.

Source/core/platform/network/ResourceHandleTypes.h

Index: Source/core/platform/network/ResourceHandleTypes.h
diff --git a/Source/core/platform/network/ResourceHandleTypes.h b/Source/core/platform/network/ResourceHandleTypes.h
index 870e7957d48fc53b3ab588022b4dcee00cff7873..c0bdb5024c906cf57ab03804775fbaaeb39e4c64 100644
--- a/Source/core/platform/network/ResourceHandleTypes.h
+++ b/Source/core/platform/network/ResourceHandleTypes.h
@@ -33,6 +33,11 @@ enum StoredCredentials {
     DoNotAllowStoredCredentials

[abarth-chromium, 2013/05/09 04:22:06]

For example, AllowStoredCredentialsWhileSameOrigin?  Maybe all four states
exists and having separate enums is better.

[Ken Russell (switch to Gerrit), 2013/05/09 23:50:02]

It should be a separate enum. There are multiple APIs (EventSource, XHR) which
give the user the option of turning off the sending of credentials, but the
implementation overrides that decision if the request is same-origin. If a
redirect causes the request to go cross-origin, then DocumentThreadableLoader
needs both pieces of information in order to reconsider its decision.

 };
 
+enum CredentialRequest {
+    ClientRequestedCredentials,
+    ClientDidNotRequestCredentials
+};
+
 } // namespace WebCore
 
 #endif // ResourceHandleTypes_h