[net/http auth] Cleanup. Method names, and constness.

net/android/http_auth_negotiate_android.h

Index: net/android/http_auth_negotiate_android.h
diff --git a/net/android/http_auth_negotiate_android.h b/net/android/http_auth_negotiate_android.h
index 56990cee900301ae179068fe0e85a6c57832aa07..9e4dc82bca2d3227187f1ba42cebc0b06a0203d7 100644
--- a/net/android/http_auth_negotiate_android.h
+++ b/net/android/http_auth_negotiate_android.h
@@ -75,7 +75,7 @@ class NET_EXPORT_PRIVATE HttpAuthNegotiateAndroid {
 
   // Parse a received Negotiate challenge.
   HttpAuth::AuthorizationResult ParseChallenge(
-      net::HttpAuthChallengeTokenizer* tok);
+      const HttpAuthChallengeTokenizer& tok);
 
   // Generates an authentication token.
   //
@@ -103,7 +103,7 @@ class NET_EXPORT_PRIVATE HttpAuthNegotiateAndroid {
   int GenerateAuthToken(const AuthCredentials* credentials,
                         const std::string& spn,
                         std::string* auth_token,
-                        const net::CompletionCallback& callback);
+                        const CompletionCallback& callback);
 
   // Delegation is allowed on the Kerberos ticket. This allows certain servers
   // to act as the user, such as an IIS server retrieving data from a