base::Bind: Increase the arity to 7.

base/bind_internal.h

 // This file was GENERATED by command:
 //     pump.py bind_internal.h.pump
 // DO NOT EDIT BY HAND!!!
 
 
 
 // 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.
 
@@ skipping 18 matching lines @@
 // The method by which a function is invoked is determined by 3 different
 // dimensions:
 //
 //   1) The type of function (normal or method).
 //   2) The arity of the function.
 //   3) The number of bound parameters.
 //
 // The templates below handle the determination of each of these dimensions.
 // In brief:
 //
-//   FunctionTraits<> -- Provides a normalied signature, and other traits.
+//   FunctionTraits<> -- Provides a normalized signature, and other traits.
 //   InvokerN<> -- Provides a DoInvoke() function that actually executes
-//                 a calback.
+//                 a callback.
 //   InvokerStorageN<> -- Provides storage for the bound parameters, and
 //                        typedefs to the above.
 //   IsWeakMethod<> -- Determines if we are binding a method to a WeakPtr<>.
 //
 // More details about the design of each class is included in a comment closer
-// to their defition.
+// to their definition.
 
 
 // IsWeakMethod determines if we are binding a method to a WeakPtr<> for an
 // object.  It is used to select an InvokerN that will no-op itself in the
 // event the WeakPtr<> for the target object is invalidated.
 template <bool IsMethod, typename T>
 struct IsWeakMethod : public false_type {};
 
 template <typename T>
 struct IsWeakMethod<true, WeakPtr<T> > : public true_type {};
 
 // FunctionTraits<>
 //
 // The FunctionTraits<> template determines the type of function, and also
 // creates a NormalizedType used to select the InvokerN classes.  It turns out
 // that syntactically, you only really have 2 variations when invoking a
-// funciton pointer: normal, and method.  One is invoked func_ptr(arg1). The
+// function pointer: normal, and method.  One is invoked func_ptr(arg1). The
 // other is invoked (*obj_->method_ptr(arg1)).
 //
 // However, in the type system, there are many more distinctions. In standard
 // C++, there's all variations of const, and volatile on the function pointer.
 // In Windows, there are additional calling conventions (eg., __stdcall,
 // __fastcall, etc.). FunctionTraits<> handles categorizing each of these into
 // a normalized signature.
 //
 // Having a NormalizedSignature signature, reduces the combinatoric
-// complexity of defintions for the InvokerN<> later.  Even though there are
+// complexity of definitions for the InvokerN<> later.  Even though there are
 // only 2 syntactic variations on invoking a function, without normalizing the
 // signature, there would need to be one specialization of InvokerN for each
 // unique (function_type, bound_arg, unbound_args) tuple in order to match all
 // function signatures.
 //
 // By normalizing the function signature, we reduce function_type to exactly 2.
 
 template <typename Sig>
 struct FunctionTraits;
 
@@ skipping 325 matching lines @@
   typedef T B1;
   typedef X1 B2;
   typedef X2 B3;
   typedef X3 B4;
   typedef X4 B5;
   typedef X5 B6;
   typedef X6 B7;
 
 };
 
+// Function: Arity 7.
+template <typename R, typename X1, typename X2, typename X3, typename X4,
+    typename X5, typename X6, typename X7>
+struct FunctionTraits<R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R (*NormalizedSig)(X1, X2, X3, X4, X5, X6, X7);
+  typedef false_type IsMethod;
+
+  typedef R Return;
+
+  // Target type for each bound parameter.
+  typedef X1 B1;
+  typedef X2 B2;
+  typedef X3 B3;
+  typedef X4 B4;
+  typedef X5 B5;
+  typedef X6 B6;
+  typedef X7 B7;
+
+};
+
+// Method: Arity 7.
+template <typename R, typename T, typename X1, typename X2, typename X3,
+    typename X4, typename X5, typename X6, typename X7>
+struct FunctionTraits<R(T::*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R (T::*NormalizedSig)(X1, X2, X3, X4, X5, X6, X7);
+  typedef true_type IsMethod;
+
+  typedef R Return;
+
+  // Target type for each bound parameter.
+  typedef T B1;
+  typedef X1 B2;
+  typedef X2 B3;
+  typedef X3 B4;
+  typedef X4 B5;
+  typedef X5 B6;
+  typedef X6 B7;
+  typedef X7 B8;
+
+};
+
+// Const Method: Arity 7.
+template <typename R, typename T, typename X1, typename X2, typename X3,
+    typename X4, typename X5, typename X6, typename X7>
+struct FunctionTraits<R(T::*)(X1, X2, X3, X4, X5, X6, X7) const> {
+  typedef R (T::*NormalizedSig)(X1, X2, X3, X4, X5, X6, X7);
+  typedef true_type IsMethod;
+
+  typedef R Return;
+
+  // Target type for each bound parameter.
+  typedef T B1;
+  typedef X1 B2;
+  typedef X2 B3;
+  typedef X3 B4;
+  typedef X4 B5;
+  typedef X5 B6;
+  typedef X6 B7;
+  typedef X7 B8;
+
+};
+
 // InvokerN<>
 //
 // The InvokerN templates contain a static DoInvoke() function that is the key
 // to implementing type erasure in the Callback() classes.
 //
 // DoInvoke() is a static function with a fixed signature that is independent
 // of StorageType; its first argument is a pointer to the non-templated common
-// baseclass of StorageType. This lets us store pointer to DoInvoke() in a
+// base class of StorageType. This lets us store pointer to DoInvoke() in a
 // function pointer that has knowledge of the specific StorageType, and thus
 // no knowledge of the bound function and bound parameter types.
 //
 // As long as we ensure that DoInvoke() is only used with pointers there were
-// upcasted from the correct StorageType, we can be sure that execution is
+// up-casted from the correct StorageType, we can be sure that execution is
 // safe.
 //
 // The InvokerN templates are the only point that knows the number of bound
 // and unbound arguments.  This is intentional because it allows the other
 // templates classes in the system to only have as many specializations as
 // the max arity of function we wish to support.
 
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker0;
 
@@ skipping 120 matching lines @@
       typename internal::ParamTraits<X2>::ForwardType x2,
       typename internal::ParamTraits<X3>::ForwardType x3,
       typename internal::ParamTraits<X4>::ForwardType x4,
       typename internal::ParamTraits<X5>::ForwardType x5,
       typename internal::ParamTraits<X6>::ForwardType x6) {
     StorageType* invoker = static_cast<StorageType*>(base);
     return invoker->f_(x1, x2, x3, x4, x5, x6);
   }
 };
 
+// Function: Arity 7 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker0<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X1>::ForwardType,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X1>::ForwardType x1,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker1;
 
 // Function: Arity 1 -> 0.
 template <typename StorageType, typename R,typename X1>
 struct Invoker1<false, StorageType, R(*)(X1)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
   static R DoInvoke(InvokerStorageBase* base) {
@@ skipping 324 matching lines @@
       typename internal::ParamTraits<X5>::ForwardType x5) {
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(x1, x2, x3, x4, x5);
   }
 };
 
+// Function: Arity 7 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker1<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Method: Arity 6 -> 6.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker1<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X1>::ForwardType,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X1>::ForwardType x1,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(x1, x2, x3, x4, x5, x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 6.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker1<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X1>::ForwardType,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X1>::ForwardType x1,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(x1, x2, x3, x4, x5, x6);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker2;
 
 // Function: Arity 2 -> 0.
 template <typename StorageType, typename R,typename X1, typename X2>
 struct Invoker2<false, StorageType, R(*)(X1, X2)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
   static R DoInvoke(InvokerStorageBase* base) {
@@ skipping 257 matching lines @@
       typename internal::ParamTraits<X5>::ForwardType x5) {
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), x2, x3, x4, x5);
   }
 };
 
+// Function: Arity 7 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker2<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_), x3, x4, x5,
+        x6, x7);
+  }
+};
+
+// Method: Arity 6 -> 5.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker2<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_), x2, x3,
+        x4, x5, x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 5.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker2<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X2>::ForwardType,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X2>::ForwardType x2,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), x2, x3, x4, x5, x6);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker3;
 
 // Function: Arity 3 -> 0.
 template <typename StorageType, typename R,typename X1, typename X2,
     typename X3>
 struct Invoker3<false, StorageType, R(*)(X1, X2, X3)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
@@ skipping 200 matching lines @@
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_), x3,
         x4, x5);
   }
 };
 
+// Function: Arity 7 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker3<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), x4, x5, x6, x7);
+  }
+};
+
+// Method: Arity 6 -> 4.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker3<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), x3, x4, x5, x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 4.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker3<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X3>::ForwardType,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X3>::ForwardType x3,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_), x3,
+        x4, x5, x6);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker4;
 
 // Function: Arity 4 -> 0.
 template <typename StorageType, typename R,typename X1, typename X2,
     typename X3, typename X4>
 struct Invoker4<false, StorageType, R(*)(X1, X2, X3, X4)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
@@ skipping 139 matching lines @@
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
         Unwrap(invoker->p4_), x4, x5);
   }
 };
 
+// Function: Arity 7 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker4<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), x5, x6, x7);
+  }
+};
+
+// Method: Arity 6 -> 3.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker4<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), x4, x5, x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 3.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker4<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X4>::ForwardType,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X4>::ForwardType x4,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
+        Unwrap(invoker->p4_), x4, x5, x6);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker5;
 
 // Function: Arity 5 -> 0.
 template <typename StorageType, typename R,typename X1, typename X2,
     typename X3, typename X4, typename X5>
 struct Invoker5<false, StorageType, R(*)(X1, X2, X3, X4, X5)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
@@ skipping 81 matching lines @@
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
         Unwrap(invoker->p4_), Unwrap(invoker->p5_), x5);
   }
 };
 
+// Function: Arity 7 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker5<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X6>::ForwardType,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X6>::ForwardType x6,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_), x6,
+        x7);
+  }
+};
+
+// Method: Arity 6 -> 2.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker5<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_), x5,
+        x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 2.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker5<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X5>::ForwardType,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X5>::ForwardType x5,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
+        Unwrap(invoker->p4_), Unwrap(invoker->p5_), x5, x6);
+  }
+};
+
 template <bool IsWeak, typename StorageType, typename NormalizedSig>
 struct Invoker6;
 
 // Function: Arity 6 -> 0.
 template <typename StorageType, typename R,typename X1, typename X2,
     typename X3, typename X4, typename X5, typename X6>
 struct Invoker6<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6)> {
   typedef R(*DoInvokeType)(
       internal::InvokerStorageBase*);
 
@@ skipping 31 matching lines @@
     StorageType* invoker = static_cast<StorageType*>(base);
     typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
     if (!weak_ptr.get()) {
       return;
     }
     (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
         Unwrap(invoker->p4_), Unwrap(invoker->p5_), Unwrap(invoker->p6_));
   }
 };
 
+// Function: Arity 7 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker6<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X7>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X7>::ForwardType x7) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_),
+        Unwrap(invoker->p6_), x7);
+  }
+};
+
+// Method: Arity 6 -> 1.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker6<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static R DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_),
+        Unwrap(invoker->p6_), x6);
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 1.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker6<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*,
+          typename internal::ParamTraits<X6>::ForwardType);
+
+  static void DoInvoke(InvokerStorageBase* base,
+      typename internal::ParamTraits<X6>::ForwardType x6) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
+        Unwrap(invoker->p4_), Unwrap(invoker->p5_), Unwrap(invoker->p6_), x6);
+  }
+};
+
+template <bool IsWeak, typename StorageType, typename NormalizedSig>
+struct Invoker7;
+
+// Function: Arity 7 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker7<false, StorageType, R(*)(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*);
+
+  static R DoInvoke(InvokerStorageBase* base) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return invoker->f_(Unwrap(invoker->p1_), Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_),
+        Unwrap(invoker->p6_), Unwrap(invoker->p7_));
+  }
+};
+
+// Method: Arity 6 -> 0.
+template <typename StorageType, typename R, typename T, typename X1,
+    typename X2, typename X3, typename X4, typename X5, typename X6>
+struct Invoker7<false, StorageType, R(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef R(*DoInvokeType)(
+      internal::InvokerStorageBase*);
+
+  static R DoInvoke(InvokerStorageBase* base) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    return (Unwrap(invoker->p1_)->*invoker->f_)(Unwrap(invoker->p2_),
+        Unwrap(invoker->p3_), Unwrap(invoker->p4_), Unwrap(invoker->p5_),
+        Unwrap(invoker->p6_), Unwrap(invoker->p7_));
+  }
+};
+
+// WeakPtr Method: Arity 6 -> 0.
+template <typename StorageType, typename T, typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6>
+struct Invoker7<true, StorageType, void(T::*)(X1, X2, X3, X4, X5, X6)> {
+  typedef void(*DoInvokeType)(
+      internal::InvokerStorageBase*);
+
+  static void DoInvoke(InvokerStorageBase* base) {
+    StorageType* invoker = static_cast<StorageType*>(base);
+    typename StorageType::P1Traits::StorageType& weak_ptr = invoker->p1_;
+    if (!weak_ptr.get()) {
+      return;
+    }
+    (weak_ptr->*invoker->f_)(Unwrap(invoker->p2_), Unwrap(invoker->p3_),
+        Unwrap(invoker->p4_), Unwrap(invoker->p5_), Unwrap(invoker->p6_),
+        Unwrap(invoker->p7_));
+  }
+};
+
 // BindMoreFuncN<>
 //
 // This set of functions help in fully binding the free parameters in a
 // Callback<>.
 template <typename Sig, typename P1>
 void BindMoreFunc1(const base::Callback<Sig>& callback, const P1& p1) {
   callback.Run(p1);
 }
 
 template <typename Sig, typename P1, typename P2>
@@ skipping 21 matching lines @@
   callback.Run(p1, p2, p3, p4, p5);
 }
 
 template <typename Sig, typename P1, typename P2, typename P3, typename P4,
     typename P5, typename P6>
 void BindMoreFunc6(const base::Callback<Sig>& callback, const P1& p1,
     const P2& p2, const P3& p3, const P4& p4, const P5& p5, const P6& p6) {
   callback.Run(p1, p2, p3, p4, p5, p6);
 }
 
+template <typename Sig, typename P1, typename P2, typename P3, typename P4,
+    typename P5, typename P6, typename P7>
+void BindMoreFunc7(const base::Callback<Sig>& callback, const P1& p1,
+    const P2& p2, const P3& p3, const P4& p4, const P5& p5, const P6& p6,
+    const P7& p7) {
+  callback.Run(p1, p2, p3, p4, p5, p6, p7);
+}
+
 // InvokerStorageN<>
 //
 // These are the actual storage classes for the Invokers.
 //
 // Though these types are "classes", they are being used as structs with
 // all member variable public.  We cannot make it a struct because it inherits
 // from a class which causes a compiler warning.  We cannot add a "Run()" method
 // that forwards the unbound arguments because that would require we unwrap the
 // Sig type like in InvokerN above to know the return type, and the arity
 // of Run().
@@ skipping 406 matching lines @@
 
   Sig f_;
   typename ParamTraits<P1>::StorageType p1_;
   typename ParamTraits<P2>::StorageType p2_;
   typename ParamTraits<P3>::StorageType p3_;
   typename ParamTraits<P4>::StorageType p4_;
   typename ParamTraits<P5>::StorageType p5_;
   typename ParamTraits<P6>::StorageType p6_;
 };
 
+template <typename Sig, typename P1, typename P2, typename P3, typename P4,
+    typename P5, typename P6, typename P7>
+class InvokerStorage7 : public InvokerStorageBase {
+ public:
+  typedef InvokerStorage7 StorageType;
+  typedef FunctionTraits<Sig> TargetTraits;
+  typedef typename TargetTraits::IsMethod IsMethod;
+  typedef Sig Signature;
+  typedef ParamTraits<P1> P1Traits;
+  typedef ParamTraits<P2> P2Traits;
+  typedef ParamTraits<P3> P3Traits;
+  typedef ParamTraits<P4> P4Traits;
+  typedef ParamTraits<P5> P5Traits;
+  typedef ParamTraits<P6> P6Traits;
+  typedef ParamTraits<P7> P7Traits;
+  typedef Invoker7<IsWeakMethod<IsMethod::value, P1>::value, StorageType,
+                   typename TargetTraits::NormalizedSig> Invoker;
+  COMPILE_ASSERT(!(IsWeakMethod<IsMethod::value, P1>::value) ||
+                 is_void<typename TargetTraits::Return>::value,
+                 weak_ptrs_can_only_bind_to_methods_without_return_values);
+
+  // For methods, we need to be careful for parameter 1.  We skip the
+  // scoped_refptr check because the binder itself takes care of this. We also
+  // disallow binding of an array as the method's target object.
+  COMPILE_ASSERT(IsMethod::value ||
+                 internal::NeedsScopedRefptrButGetsRawPtr<
+                     typename ParamTraits<P1>::StorageType>::value == 0,
+                 p1_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(!IsMethod::value || !is_array<P1>::value,
+                 first_bound_argument_to_method_cannot_be_array);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P2>::StorageType>::value == 0,
+      p2_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P3>::StorageType>::value == 0,
+      p3_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P4>::StorageType>::value == 0,
+      p4_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P5>::StorageType>::value == 0,
+      p5_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P6>::StorageType>::value == 0,
+      p6_is_refcounted_type_and_needs_scoped_refptr);
+  COMPILE_ASSERT(internal::NeedsScopedRefptrButGetsRawPtr<
+          typename ParamTraits<P7>::StorageType>::value == 0,
+      p7_is_refcounted_type_and_needs_scoped_refptr);
+
+  // Do not allow binding a non-const reference parameter. Non-const reference
+  // parameters are disallowed by the Google style guide.  Also, binding a
+  // non-const reference parameter can make for subtle bugs because the
+  // invoked function will receive a reference to the stored copy of the
+  // argument and not the original.
+  COMPILE_ASSERT(
+      !( is_non_const_reference<typename TargetTraits::B1>::value ||
+          is_non_const_reference<typename TargetTraits::B2>::value ||
+          is_non_const_reference<typename TargetTraits::B3>::value ||
+          is_non_const_reference<typename TargetTraits::B4>::value ||
+          is_non_const_reference<typename TargetTraits::B5>::value ||
+          is_non_const_reference<typename TargetTraits::B6>::value ||
+          is_non_const_reference<typename TargetTraits::B7>::value ),
+      do_not_bind_functions_with_nonconst_ref);
+
+
+  InvokerStorage7(Sig f, const P1& p1, const P2& p2, const P3& p3,
+      const P4& p4, const P5& p5, const P6& p6, const P7& p7)
+      : f_(f), p1_(static_cast<typename ParamTraits<P1>::StorageType>(p1)),
+          p2_(static_cast<typename ParamTraits<P2>::StorageType>(p2)),
+          p3_(static_cast<typename ParamTraits<P3>::StorageType>(p3)),
+          p4_(static_cast<typename ParamTraits<P4>::StorageType>(p4)),
+          p5_(static_cast<typename ParamTraits<P5>::StorageType>(p5)),
+          p6_(static_cast<typename ParamTraits<P6>::StorageType>(p6)),
+          p7_(static_cast<typename ParamTraits<P7>::StorageType>(p7)) {
+    MaybeRefcount<IsMethod, P1>::AddRef(p1_);
+  }
+
+  virtual ~InvokerStorage7() {
+    MaybeRefcount<IsMethod, P1>::Release(p1_);
+  }
+
+  Sig f_;
+  typename ParamTraits<P1>::StorageType p1_;
+  typename ParamTraits<P2>::StorageType p2_;
+  typename ParamTraits<P3>::StorageType p3_;
+  typename ParamTraits<P4>::StorageType p4_;
+  typename ParamTraits<P5>::StorageType p5_;
+  typename ParamTraits<P6>::StorageType p6_;
+  typename ParamTraits<P7>::StorageType p7_;
+};
+
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_BIND_INTERNAL_H_