Add ntlm to the list of auth protocols

android_webview/browser/net/aw_url_request_context_getter.cc

Index: android_webview/browser/net/aw_url_request_context_getter.cc
diff --git a/android_webview/browser/net/aw_url_request_context_getter.cc b/android_webview/browser/net/aw_url_request_context_getter.cc
index 7ab710f8f8ce0de07ded743bb7b2bc052e71986e..9b38833ee655d08d6933cd0fec61c2a7ab5b708c 100644
--- a/android_webview/browser/net/aw_url_request_context_getter.cc
+++ b/android_webview/browser/net/aw_url_request_context_getter.cc
@@ -310,7 +310,8 @@ AwURLRequestContextGetter::CreateAuthHandlerFactory(
 
   // In Chrome this is configurable via the AuthSchemes policy. For WebView
   // there is no interest to have it available so far.
-  std::vector<std::string> supported_schemes = {"basic", "digest", "negotiate"};
+  std::vector<std::string> supported_schemes = {"basic", "digest", "ntlm",
+                                                "negotiate"};
   http_auth_preferences_.reset(new net::HttpAuthPreferences(supported_schemes));
 
   UpdateServerWhitelist();