base::Bind: Remove ScopedRunnableMethodFactory.

base/task.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 // ============================================================================
 // ****************************************************************************
 // *  THIS HEADER IS DEPRECATED, SEE base/callback.h FOR NEW IMPLEMENTATION   *
 // ****************************************************************************
 // ============================================================================
 // ============================================================================
 // ****************************************************************************
@@ skipping 46 matching lines @@
 
 class BASE_EXPORT CancelableTask : public Task {
  public:
   CancelableTask();
   virtual ~CancelableTask();
 
   // Not all tasks support cancellation.
   virtual void Cancel() = 0;
 };
 
-// Scoped Factories ------------------------------------------------------------
-//
-// These scoped factory objects can be used by non-refcounted objects to safely
-// place tasks in a message loop.  Each factory guarantees that the tasks it
-// produces will not run after the factory is destroyed.  Commonly, factories
-// are declared as class members, so the class' tasks will automatically cancel
-// when the class instance is destroyed.
-//
-// Exampe Usage:
-//
-// class MyClass {
-//  private:
-//   // This factory will be used to schedule invocations of SomeMethod.
-//   ScopedRunnableMethodFactory<MyClass> some_method_factory_;
-//
-//  public:
-//   // It is safe to suppress warning 4355 here.
-//   MyClass() : ALLOW_THIS_IN_INITIALIZER_LIST(some_method_factory_(this)) { }
-//
-//   void SomeMethod() {
-//     // If this function might be called directly, you might want to revoke
-//     // any outstanding runnable methods scheduled to call it.  If it's not
-//     // referenced other than by the factory, this is unnecessary.
-//     some_method_factory_.RevokeAll();
-//     ...
-//   }
-//
-//   void ScheduleSomeMethod() {
-//     // If you'd like to only only have one pending task at a time, test for
-//     // |empty| before manufacturing another task.
-//     if (!some_method_factory_.empty())
-//       return;
-//
-//     // The factories are not thread safe, so always invoke on
-//     // |MessageLoop::current()|.
-//     MessageLoop::current()->PostDelayedTask(
-//         FROM_HERE,
-//         some_method_factory_.NewRunnableMethod(&MyClass::SomeMethod),
-//         kSomeMethodDelayMS);
-//   }
-// };
-
-// A ScopedRunnableMethodFactory creates runnable methods for a specified
-// object.  This is particularly useful for generating callbacks for
-// non-reference counted objects when the factory is a member of the object.
-template<class T>
-class ScopedRunnableMethodFactory {
- public:
-  explicit ScopedRunnableMethodFactory(T* object) : weak_factory_(object) {
-  }
-
-  template <class Method>
-  inline CancelableTask* NewRunnableMethod(Method method) {
-    return new RunnableMethod<Method, Tuple0>(
-        weak_factory_.GetWeakPtr(), method, MakeTuple());
-  }
-
-  template <class Method, class A>
-  inline CancelableTask* NewRunnableMethod(Method method, const A& a) {
-    return new RunnableMethod<Method, Tuple1<A> >(
-        weak_factory_.GetWeakPtr(), method, MakeTuple(a));
-  }
-
-  template <class Method, class A, class B>
-  inline CancelableTask* NewRunnableMethod(Method method, const A& a,
-                                           const B& b) {
-    return new RunnableMethod<Method, Tuple2<A, B> >(
-        weak_factory_.GetWeakPtr(), method, MakeTuple(a, b));
-  }
-
-  template <class Method, class A, class B, class C>
-  inline CancelableTask* NewRunnableMethod(Method method,
-                                           const A& a,
-                                           const B& b,
-                                           const C& c) {
-    return new RunnableMethod<Method, Tuple3<A, B, C> >(
-        weak_factory_.GetWeakPtr(), method, MakeTuple(a, b, c));
-  }
-
-  template <class Method, class A, class B, class C, class D>
-  inline CancelableTask* NewRunnableMethod(Method method,
-                                           const A& a,
-                                           const B& b,
-                                           const C& c,
-                                           const D& d) {
-    return new RunnableMethod<Method, Tuple4<A, B, C, D> >(
-        weak_factory_.GetWeakPtr(), method, MakeTuple(a, b, c, d));
-  }
-
-  template <class Method, class A, class B, class C, class D, class E>
-  inline CancelableTask* NewRunnableMethod(Method method,
-                                           const A& a,
-                                           const B& b,
-                                           const C& c,
-                                           const D& d,
-                                           const E& e) {
-    return new RunnableMethod<Method, Tuple5<A, B, C, D, E> >(
-        weak_factory_.GetWeakPtr(), method, MakeTuple(a, b, c, d, e));
-  }
-
-  void RevokeAll() { weak_factory_.InvalidateWeakPtrs(); }
-
-  bool empty() const { return !weak_factory_.HasWeakPtrs(); }
-
- protected:
-  template <class Method, class Params>
-  class RunnableMethod : public CancelableTask {
-   public:
-    RunnableMethod(const base::WeakPtr<T>& obj,
-                   Method meth,
-                   const Params& params)
-        : obj_(obj),
-          meth_(meth),
-          params_(params) {
-      COMPILE_ASSERT(
-          (base::internal::ParamsUseScopedRefptrCorrectly<Params>::value),
-          badscopedrunnablemethodparams);
-    }
-
-    virtual void Run() {
-      if (obj_)
-        DispatchToMethod(obj_.get(), meth_, params_);
-    }
-
-    virtual void Cancel() {
-      obj_.reset();
-    }
-
-   private:
-    base::WeakPtr<T> obj_;
-    Method meth_;
-    Params params_;
-
-    DISALLOW_COPY_AND_ASSIGN(RunnableMethod);
-  };
-
- private:
-  base::WeakPtrFactory<T> weak_factory_;
-};
-
-// Delete helper for use with base::Bind(). If you're posting a task to delete
-// an object, prefer DeleteSoon().
 template<typename T>
 void DeletePointer(T* obj) {
   delete obj;
 }
 
 // RunnableMethodTraits --------------------------------------------------------
 //
 // This traits-class is used by RunnableMethod to manage the lifetime of the
 // callee object.  By default, it is assumed that the callee supports AddRef
 // and Release methods.  A particular class can specialize this template to
@@ skipping 284 matching lines @@
   Task* task_;
   bool* should_leak_task_;
   static bool kTaskLeakingDefault;
 };
 
 }  // namespace subtle
 
 }  // namespace base
 
 #endif  // BASE_TASK_H_