Revert of Make ProfileIOData's ProxyService fetch PACs with the main URLRequestContext

net/test/embedded_test_server/embedded_test_server.cc

 // Copyright (c) 2012 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/test/embedded_test_server/embedded_test_server.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
@@ skipping 60 matching lines @@
   {
     // Thread::Join induced by test code should cause an assert.
     base::ThreadRestrictions::ScopedAllowIO allow_io_for_thread_join;
 
     io_thread_.reset();
   }
 }
 
 void EmbeddedTestServer::SetConnectionListener(
     EmbeddedTestServerConnectionListener* listener) {
-  DCHECK(!io_thread_.get());
+  DCHECK(!Started());
   connection_listener_ = listener;
 }
 
 bool EmbeddedTestServer::Start() {
   bool success = InitializeAndListen();
   if (!success)
     return false;
   StartAcceptingConnections();
   return true;
 }
@@ skipping 386 matching lines @@
                                                    run_loop.QuitClosure())) {
     return false;
   }
   run_loop.Run();
 
   return true;
 }
 
 }  // namespace test_server
 }  // namespace net