Made MessagePump a non-thread safe class.

net/dns/dns_transaction_unittest.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/dns/dns_transaction.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/rand_util.h"
@@ skipping 603 matching lines @@
   // Use short timeout to speed up the test.
   config_.timeout = TestTimeouts::tiny_timeout();
   ConfigureFactory();
 
   AddQueryAndTimeout(kT0HostName, kT0Qtype);
   AddQueryAndTimeout(kT0HostName, kT0Qtype);
   AddQueryAndTimeout(kT0HostName, kT0Qtype);
 
   TransactionHelper helper0(kT0HostName, kT0Qtype, ERR_DNS_TIMED_OUT);
   EXPECT_TRUE(helper0.RunUntilDone(transaction_factory_.get()));
-  base::MessageLoop::current()->AssertIdle();
+  EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 }
 
 TEST_F(DnsTransactionTest, ServerFallbackAndRotate) {
   // Test that we fallback on both server failure and timeout.
   config_.attempts = 2;
   // The next request should start from the next server.
   config_.rotate = true;
   ConfigureNumServers(3);
   // Use short timeout to speed up the test.
   config_.timeout = TestTimeouts::tiny_timeout();
@@ skipping 296 matching lines @@
   config_.timeout = TestTimeouts::tiny_timeout();
   ConfigureFactory();
 
   TransactionHelper helper0(".", dns_protocol::kTypeA, ERR_INVALID_ARGUMENT);
   EXPECT_TRUE(helper0.Run(transaction_factory_.get()));
 }
 
 }  // namespace
 
 }  // namespace net