Automated IWYU fix for TaskRunner includes.

net/android/http_auth_negotiate_android.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/android/http_auth_negotiate_android.h"
 
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "jni/HttpNegotiateAuthenticator_jni.h"
 #include "net/base/auth.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
 #include "net/http/http_auth_multi_round_parse.h"
 #include "net/http/http_auth_preferences.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertUTF8ToJavaString;
@@ skipping 130 matching lines @@
                                                  const std::string& raw_token) {
   DCHECK(auth_token_);
   DCHECK(!completion_callback_.is_null());
   if (result == OK)
     *auth_token_ = "Negotiate " + raw_token;
   base::ResetAndReturn(&completion_callback_).Run(result);
 }
 
 }  // namespace android
 }  // namespace net