Reduce usage of MessageLoopProxy in base/

base/bind_helpers.h

 // Copyright (c) 2011 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.
 
 // This defines a set of argument wrappers and related factory methods that
 // can be used specify the refcounting and reference semantics of arguments
 // that are bound by the Bind() function in base/bind.h.
 //
 // It also defines a set of simple functions and utilities that people want
 // when using Callback<> and Bind().
@@ skipping 111 matching lines @@
 //   cb = Bind(&TakesOwnership, Passed(CreateFoo()));
 //
 //   // |arg| in TakesOwnership() is given ownership of Foo(). |cb|
 //   // no longer owns Foo() and, if reset, would not delete Foo().
 //   cb.Run();  // Foo() is now transferred to |arg| and deleted.
 //   cb.Run();  // This CHECK()s since Foo() already been used once.
 //
 // Passed() is particularly useful with PostTask() when you are transferring
 // ownership of an argument into a task, but don't necessarily know if the
 // task will always be executed. This can happen if the task is cancellable
-// or if it is posted to a MessageLoopProxy.
+// or if it is posted to a TaskRunner.
 //
 //
 // SIMPLE FUNCTIONS AND UTILITIES.
 //
 //   DoNothing() - Useful for creating a Closure that does nothing when called.
 //   DeletePointer<T>() - Useful for creating a Closure that will delete a
 //                        pointer when invoked. Only use this when necessary.
 //                        In most cases MessageLoop::DeleteSoon() is a better
 //                        fit.
 
@@ skipping 392 matching lines @@
 BASE_EXPORT void DoNothing();
 
 template<typename T>
 void DeletePointer(T* obj) {
   delete obj;
 }
 
 }  // namespace base
 
 #endif  // BASE_BIND_HELPERS_H_