Removing 'AllowScopedIO' exception from SecurityKeyAuthHandlerLinux

remoting/host/security_key/security_key_auth_handler_win_unittest.cc

 // Copyright 2016 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 "remoting/host/security_key/security_key_auth_handler.h"
 
 #include <cstdint>
 #include <memory>
 #include <string>
 
@@ skipping 104 matching lines @@
   testing::NiceMock<MockClientSessionDetails> mock_client_session_details_;
 
   DISALLOW_COPY_AND_ASSIGN(SecurityKeyAuthHandlerWinTest);
 };
 
 SecurityKeyAuthHandlerWinTest::SecurityKeyAuthHandlerWinTest()
     : run_loop_(new base::RunLoop()) {
   auth_handler_ = remoting::SecurityKeyAuthHandler::Create(
       &mock_client_session_details_,
       base::Bind(&SecurityKeyAuthHandlerWinTest::SendMessageToClient,
-                 base::Unretained(this)));
+                 base::Unretained(this)),
+      /*file_task_runner=*/nullptr);
 }
 
 SecurityKeyAuthHandlerWinTest::~SecurityKeyAuthHandlerWinTest() {}
 
 void SecurityKeyAuthHandlerWinTest::OperationComplete() {
   run_loop_->Quit();
 }
 
 void SecurityKeyAuthHandlerWinTest::WaitForOperationComplete() {
   run_loop_->Run();
@@ skipping 409 matching lines @@
   ASSERT_TRUE(fake_ipc_client.ConnectViaIpc(channel_name));
   // Wait for the error callback to be signaled.
   WaitForOperationComplete();
 
   // Verify the connection was not set up.
   ASSERT_FALSE(auth_handler_->IsValidConnectionId(kConnectionId1));
   ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest());
 }
 
 }  // namespace remoting