Remove calls to deprecated MessageLoop methods in remoting.

remoting/signaling/iq_sender_unittest.cc

 // Copyright 2014 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/signaling/iq_sender.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
@@ skipping 112 matching lines @@
 TEST_F(IqSenderTest, Timeout) {
   ASSERT_NO_FATAL_FAILURE({
     SendTestMessage();
   });
 
   request_->SetTimeout(base::TimeDelta::FromMilliseconds(2));
 
   EXPECT_CALL(callback_, OnReply(request_.get(), nullptr))
       .WillOnce(
           InvokeWithoutArgs(&message_loop_, &base::MessageLoop::QuitWhenIdle));
-  message_loop_.Run();
+  base::RunLoop().Run();
 }
 
 TEST_F(IqSenderTest, NotNormalizedJid) {
   ASSERT_NO_FATAL_FAILURE({
     SendTestMessage();
   });
 
   // Set upper-case from value, which is equivalent to kTo in the original
   // message.
   std::unique_ptr<XmlElement> response;
   EXPECT_TRUE(FormatAndDeliverResponse("USER@domain.com", &response));
 
   EXPECT_CALL(callback_, OnReply(request_.get(), XmlEq(response.get())));
   base::RunLoop().RunUntilIdle();
 }
 
 TEST_F(IqSenderTest, InvalidFrom) {
   ASSERT_NO_FATAL_FAILURE({
     SendTestMessage();
   });
 
   EXPECT_FALSE(FormatAndDeliverResponse("different_user@domain.com", nullptr));
 
   EXPECT_CALL(callback_, OnReply(_, _)).Times(0);
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace remoting