Fix build on non-X11 platforms.

message_loop/message_pump_libevent_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 "base/message_loop/message_pump_libevent.h"
 
 #include <unistd.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 272 matching lines @@
     if (!work_units_)
       return false;
     work_units_--;
     return true;
   }
 
  private:
   uint32_t work_units_;
 };
 
-TEST_F(MessagePumpLibeventTest, PollEventSource) {
+TEST(MessagePumpLibeventEventSourceTest, Poll) {
+  MessagePumpLibevent* pump = new MessagePumpLibevent;  // owned by |loop|.
+  MessageLoop loop(make_scoped_ptr(pump));
   FakeEventSource event_source;
 
   // Verify event source gets polled repeatedly until no work remains.
-  MessageLoopForUI::current()->SetEventSource(&event_source);
+  pump->SetEventSource(&event_source);
   event_source.set_work_units(5u);
-  ui_loop_->RunUntilIdle();
+  loop.RunUntilIdle();
   EXPECT_EQ(0u, event_source.work_units());
 
   // After removing the event source, it should no longer be polled.
-  MessageLoopForUI::current()->ClearEventSource();
+  pump->ClearEventSource();
   event_source.set_work_units(5u);
-  ui_loop_->RunUntilIdle();
+  loop.RunUntilIdle();
   EXPECT_EQ(5u, event_source.work_units());
 }
 
 }  // namespace
 
 }  // namespace base