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

net/http/http_auth_unittest.cc

Index: net/http/http_auth_unittest.cc
diff --git a/net/http/http_auth_unittest.cc b/net/http/http_auth_unittest.cc
index d39d503c7e4201df3f3b88f1b1404d2b0d0f3624..f75cf023cb919d5a582c27b75414fc8e36fd5572 100644
--- a/net/http/http_auth_unittest.cc
+++ b/net/http/http_auth_unittest.cc
@@ -33,8 +33,8 @@ HttpAuthHandlerMock* CreateMockHandler(bool expect_multiple_challenges) {
   HttpAuthChallengeTokenizer challenge(challenge_text.begin(),
                                        challenge_text.end());
   GURL origin("www.example.com");
-  EXPECT_TRUE(auth_handler->InitFromChallenge(&challenge, HttpAuth::AUTH_SERVER,
-                                              origin, BoundNetLog()));
+  EXPECT_EQ(OK, auth_handler->HandleInitialChallenge(
+                    challenge, HttpAuth::AUTH_SERVER, origin, BoundNetLog()));
   return auth_handler;
 }