Made MessagePump a non-thread safe class.

base/message_loop/message_pump_io_ios_unittest.cc

 // Copyright 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_io_ios.h"
 
 #include <unistd.h>
 
 #include "base/message_loop/message_loop.h"
 #include "base/posix/eintr_wrapper.h"
@@ skipping 108 matching lines @@
   }
 
   virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
     DCHECK(controller_);
     delete controller_;
     controller_ = NULL;
   }
 };
 
 TEST_F(MessagePumpIOSForIOTest, DeleteWatcher) {
-  scoped_refptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
+  scoped_ptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
   MessagePumpIOSForIO::FileDescriptorWatcher* watcher =
       new MessagePumpIOSForIO::FileDescriptorWatcher;
   DeleteWatcher delegate(watcher);
   pump->WatchFileDescriptor(pipefds_[1],
       false, MessagePumpIOSForIO::WATCH_READ_WRITE, watcher, &delegate);
 
   // Spoof a callback.
   HandleFdIOEvent(watcher);
 }
 
@@ skipping 15 matching lines @@
           false, MessagePumpIOSForIO::WATCH_READ_WRITE, controller_, this);
     }
   }
 
  private:
   MessagePumpIOSForIO* pump_;
   int fd_to_start_watching_;
 };
 
 TEST_F(MessagePumpIOSForIOTest, StopWatcher) {
-  scoped_refptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
+  scoped_ptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
   MessagePumpIOSForIO::FileDescriptorWatcher watcher;
-  StopWatcher delegate(&watcher, pump);
+  StopWatcher delegate(&watcher, pump.get());
   pump->WatchFileDescriptor(pipefds_[1],
       false, MessagePumpIOSForIO::WATCH_READ_WRITE, &watcher, &delegate);
 
   // Spoof a callback.
   HandleFdIOEvent(&watcher);
 }
 
 TEST_F(MessagePumpIOSForIOTest, StopWatcherAndWatchSomethingElse) {
-  scoped_refptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
+  scoped_ptr<MessagePumpIOSForIO> pump(new MessagePumpIOSForIO);
   MessagePumpIOSForIO::FileDescriptorWatcher watcher;
-  StopWatcher delegate(&watcher, pump, alternate_pipefds_[1]);
+  StopWatcher delegate(&watcher, pump.get(), alternate_pipefds_[1]);
   pump->WatchFileDescriptor(pipefds_[1],
       false, MessagePumpIOSForIO::WATCH_READ_WRITE, &watcher, &delegate);
 
   // Spoof a callback.
   HandleFdIOEvent(&watcher);
 }
 
 }  // namespace
 
 }  // namespace base