Adds the ability for save dialogs to take a default extension....

base/tuple.h

 // Copyright (c) 2006-2008 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.
 
 // A Tuple is a generic templatized container, similar in concept to std::pair.
 // There are classes Tuple0 to Tuple6, cooresponding to the number of elements
 // it contains.  The convenient MakeTuple() function takes 0 to 6 arguments,
 // and will construct and return the appropriate Tuple object.  The functions
 // DispatchToMethod and DispatchToFunction take a function pointer or instance
 // and method pointer, and unpack a tuple into arguments to the call.
@@ skipping 215 matching lines @@
   }
 
   A a;
   B b;
   C c;
   D d;
   E e;
   F f;
 };
 
+template <class A, class B, class C, class D, class E, class F, class G>
+struct Tuple7 {
+public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef D TypeD;
+  typedef E TypeE;
+  typedef F TypeF;
+  typedef G TypeG;
+  typedef Tuple7<typename TupleTraits<A>::ValueType,
+    typename TupleTraits<B>::ValueType,
+    typename TupleTraits<C>::ValueType,
+    typename TupleTraits<D>::ValueType,
+    typename TupleTraits<E>::ValueType,
+    typename TupleTraits<F>::ValueType,
+    typename TupleTraits<G>::ValueType> ValueTuple;
+  typedef Tuple7<typename TupleTraits<A>::RefType,
+    typename TupleTraits<B>::RefType,
+    typename TupleTraits<C>::RefType,
+    typename TupleTraits<D>::RefType,
+    typename TupleTraits<E>::RefType,
+    typename TupleTraits<F>::RefType,
+    typename TupleTraits<G>::RefType> RefTuple;
+
+  Tuple7() {}
+  Tuple7(typename TupleTraits<A>::ParamType a,
+    typename TupleTraits<B>::ParamType b,
+    typename TupleTraits<C>::ParamType c,
+    typename TupleTraits<D>::ParamType d,
+    typename TupleTraits<E>::ParamType e,
+    typename TupleTraits<F>::ParamType f,
+    typename TupleTraits<G>::ParamType g)
+    : a(a), b(b), c(c), d(d), e(e), f(f), g(g) {
+  }
+
+  A a;
+  B b;
+  C c;
+  D d;
+  E e;
+  F f;
+  G g;
+};
+
 // Tuple creators -------------------------------------------------------------
 //
 // Helper functions for constructing tuples while inferring the template
 // argument types.
 
 inline Tuple0 MakeTuple() {
   return Tuple0();
 }
 
 template <class A>
@@ skipping 22 matching lines @@
                                        const D& d, const E& e) {
   return Tuple5<A, B, C, D, E>(a, b, c, d, e);
 }
 
 template <class A, class B, class C, class D, class E, class F>
 inline Tuple6<A, B, C, D, E, F> MakeTuple(const A& a, const B& b, const C& c,
                                           const D& d, const E& e, const F& f) {
   return Tuple6<A, B, C, D, E, F>(a, b, c, d, e, f);
 }
 
+template <class A, class B, class C, class D, class E, class F, class G>
+inline Tuple7<A, B, C, D, E, F, G> MakeTuple(const A& a, const B& b, const C& c,
+                                             const D& d, const E& e, const F& f,
+                                             const G& g) {
+  return Tuple7<A, B, C, D, E, F, G>(a, b, c, d, e, f, g);
+}
+
 // The following set of helpers make what Boost refers to as "Tiers" - a tuple
 // of references.
 
 template <class A>
 inline Tuple1<A&> MakeRefTuple(A& a) {
   return Tuple1<A&>(a);
 }
 
 template <class A, class B>
 inline Tuple2<A&, B&> MakeRefTuple(A& a, B& b) {
@@ skipping 14 matching lines @@
 inline Tuple5<A&, B&, C&, D&, E&> MakeRefTuple(A& a, B& b, C& c, D& d, E& e) {
   return Tuple5<A&, B&, C&, D&, E&>(a, b, c, d, e);
 }
 
 template <class A, class B, class C, class D, class E, class F>
 inline Tuple6<A&, B&, C&, D&, E&, F&> MakeRefTuple(A& a, B& b, C& c, D& d, E& e,
                                                    F& f) {
   return Tuple6<A&, B&, C&, D&, E&, F&>(a, b, c, d, e, f);
 }
 
+template <class A, class B, class C, class D, class E, class F, class G>
+inline Tuple7<A&, B&, C&, D&, E&, F&, G&> MakeRefTuple(A& a, B& b, C& c, D& d,
+                                                       E& e, F& f, G& g) {
+  return Tuple7<A&, B&, C&, D&, E&, F&, G&>(a, b, c, d, e, f, g);
+}
+
 // Dispatchers ----------------------------------------------------------------
 //
 // Helper functions that call the given method on an object, with the unpacked
 // tuple arguments.  Notice that they all have the same number of arguments,
 // so you need only write:
 //   DispatchToMethod(object, &Object::method, args);
 // This is very useful for templated dispatchers, since they don't need to know
 // what type |args| is.
 
 // Non-Static Dispatchers with no out params.
@@ skipping 36 matching lines @@
   (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e);
 }
 
 template<class ObjT, class Method, class A, class B, class C, class D, class E,
          class F>
 inline void DispatchToMethod(ObjT* obj, Method method,
                              const Tuple6<A, B, C, D, E, F>& arg) {
   (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f);
 }
 
+template<class ObjT, class Method, class A, class B, class C, class D, class E,
+         class F, class G>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple7<A, B, C, D, E, F, G>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f, arg.g);
+}
+
 // Static Dispatchers with no out params.
 
 template <class Function>
 inline void DispatchToFunction(Function function, const Tuple0& arg) {
   (*function)();
 }
 
 template <class Function, class A>
 inline void DispatchToFunction(Function function, const A& arg) {
   (*function)(arg);
@@ skipping 419 matching lines @@
          class OutA, class OutB, class OutC, class OutD, class OutE>
 inline void DispatchToMethod(ObjT* obj, Method method,
                              const Tuple6<InA, InB, InC, InD, InE, InF>& in,
                              Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
   (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f,
                  &out->a, &out->b, &out->c, &out->d, &out->e);
 }
 
 #endif  // BASE_TUPLE_H__