Reapplies all the IPC system work (reverts the revert r56272).

That patch wasn't what caused the regression in the page cycler.

BUG=51411,52103
TEST=still compiles

Review URL: http://codereview.chromium.org/3106018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@56390 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 156 insertions, 108 deletions

diff --git a/base/tuple.h b/base/tuple.h
index bcd2ad4..b67d924 100644
--- a/base/tuple.h
+++ b/base/tuple.h
@@ -52,6 +52,9 @@ struct TupleTraits<P&> {
   typedef P& ParamType;
 };
 
+template <class P>
+struct TupleTypes { };
+
 // Tuple -----------------------------------------------------------------------
 //
 // This set of classes is useful for bundling 0 or more heterogeneous data types
@@ -76,9 +79,6 @@ template <class A>
 struct Tuple1 {
  public:
   typedef A TypeA;
-  typedef Tuple1<typename TupleTraits<A>::ValueType> ValueTuple;
-  typedef Tuple1<typename TupleTraits<A>::RefType> RefTuple;
-  typedef Tuple1<typename TupleTraits<A>::ParamType> ParamTuple;
 
   Tuple1() {}
   explicit Tuple1(typename TupleTraits<A>::ParamType a) : a(a) {}
@@ -91,12 +91,6 @@ struct Tuple2 {
  public:
   typedef A TypeA;
   typedef B TypeB;
-  typedef Tuple2<typename TupleTraits<A>::ValueType,
-                 typename TupleTraits<B>::ValueType> ValueTuple;
-  typedef Tuple2<typename TupleTraits<A>::RefType,
-                 typename TupleTraits<B>::RefType> RefTuple;
-  typedef Tuple2<typename TupleTraits<A>::ParamType,
-                 typename TupleTraits<B>::ParamType> ParamTuple;
 
   Tuple2() {}
   Tuple2(typename TupleTraits<A>::ParamType a,
@@ -114,15 +108,6 @@ struct Tuple3 {
   typedef A TypeA;
   typedef B TypeB;
   typedef C TypeC;
-  typedef Tuple3<typename TupleTraits<A>::ValueType,
-                 typename TupleTraits<B>::ValueType,
-                 typename TupleTraits<C>::ValueType> ValueTuple;
-  typedef Tuple3<typename TupleTraits<A>::RefType,
-                 typename TupleTraits<B>::RefType,
-                 typename TupleTraits<C>::RefType> RefTuple;
-  typedef Tuple3<typename TupleTraits<A>::ParamType,
-                 typename TupleTraits<B>::ParamType,
-                 typename TupleTraits<C>::ParamType> ParamTuple;
 
   Tuple3() {}
   Tuple3(typename TupleTraits<A>::ParamType a,
@@ -143,18 +128,6 @@ struct Tuple4 {
   typedef B TypeB;
   typedef C TypeC;
   typedef D TypeD;
-  typedef Tuple4<typename TupleTraits<A>::ValueType,
-                 typename TupleTraits<B>::ValueType,
-                 typename TupleTraits<C>::ValueType,
-                 typename TupleTraits<D>::ValueType> ValueTuple;
-  typedef Tuple4<typename TupleTraits<A>::RefType,
-                 typename TupleTraits<B>::RefType,
-                 typename TupleTraits<C>::RefType,
-                 typename TupleTraits<D>::RefType> RefTuple;
-  typedef Tuple4<typename TupleTraits<A>::ParamType,
-                 typename TupleTraits<B>::ParamType,
-                 typename TupleTraits<C>::ParamType,
-                 typename TupleTraits<D>::ParamType> ParamTuple;
 
   Tuple4() {}
   Tuple4(typename TupleTraits<A>::ParamType a,
@@ -178,21 +151,6 @@ struct Tuple5 {
   typedef C TypeC;
   typedef D TypeD;
   typedef E TypeE;
-  typedef Tuple5<typename TupleTraits<A>::ValueType,
-    typename TupleTraits<B>::ValueType,
-    typename TupleTraits<C>::ValueType,
-    typename TupleTraits<D>::ValueType,
-    typename TupleTraits<E>::ValueType> ValueTuple;
-  typedef Tuple5<typename TupleTraits<A>::RefType,
-    typename TupleTraits<B>::RefType,
-    typename TupleTraits<C>::RefType,
-    typename TupleTraits<D>::RefType,
-    typename TupleTraits<E>::RefType> RefTuple;
-  typedef Tuple5<typename TupleTraits<A>::ParamType,
-    typename TupleTraits<B>::ParamType,
-    typename TupleTraits<C>::ParamType,
-    typename TupleTraits<D>::ParamType,
-    typename TupleTraits<E>::ParamType> ParamTuple;
 
   Tuple5() {}
   Tuple5(typename TupleTraits<A>::ParamType a,
@@ -219,24 +177,6 @@ struct Tuple6 {
   typedef D TypeD;
   typedef E TypeE;
   typedef F TypeF;
-  typedef Tuple6<typename TupleTraits<A>::ValueType,
-    typename TupleTraits<B>::ValueType,
-    typename TupleTraits<C>::ValueType,
-    typename TupleTraits<D>::ValueType,
-    typename TupleTraits<E>::ValueType,
-    typename TupleTraits<F>::ValueType> ValueTuple;
-  typedef Tuple6<typename TupleTraits<A>::RefType,
-    typename TupleTraits<B>::RefType,
-    typename TupleTraits<C>::RefType,
-    typename TupleTraits<D>::RefType,
-    typename TupleTraits<E>::RefType,
-    typename TupleTraits<F>::RefType> RefTuple;
-  typedef Tuple6<typename TupleTraits<A>::ParamType,
-    typename TupleTraits<B>::ParamType,
-    typename TupleTraits<C>::ParamType,
-    typename TupleTraits<D>::ParamType,
-    typename TupleTraits<E>::ParamType,
-    typename TupleTraits<F>::ParamType> ParamTuple;
 
   Tuple6() {}
   Tuple6(typename TupleTraits<A>::ParamType a,
@@ -266,27 +206,6 @@ struct Tuple7 {
   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;
-  typedef Tuple7<typename TupleTraits<A>::ParamType,
-    typename TupleTraits<B>::ParamType,
-    typename TupleTraits<C>::ParamType,
-    typename TupleTraits<D>::ParamType,
-    typename TupleTraits<E>::ParamType,
-    typename TupleTraits<F>::ParamType,
-    typename TupleTraits<G>::ParamType> ParamTuple;
 
   Tuple7() {}
   Tuple7(typename TupleTraits<A>::ParamType a,
@@ -320,30 +239,6 @@ struct Tuple8 {
   typedef F TypeF;
   typedef G TypeG;
   typedef H TypeH;
-  typedef Tuple8<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,
-    typename TupleTraits<H>::ValueType> ValueTuple;
-  typedef Tuple8<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,
-    typename TupleTraits<H>::RefType> RefTuple;
-  typedef Tuple8<typename TupleTraits<A>::ParamType,
-    typename TupleTraits<B>::ParamType,
-    typename TupleTraits<C>::ParamType,
-    typename TupleTraits<D>::ParamType,
-    typename TupleTraits<E>::ParamType,
-    typename TupleTraits<F>::ParamType,
-    typename TupleTraits<G>::ParamType,
-    typename TupleTraits<H>::ParamType> ParamTuple;
 
   Tuple8() {}
   Tuple8(typename TupleTraits<A>::ParamType a,
@@ -367,6 +262,159 @@ struct Tuple8 {
   H h;
 };
 
+// Tuple types ----------------------------------------------------------------
+//
+// Allows for selection of ValueTuple/RefTuple/ParamTuple without needing the
+// definitions of class types the tuple takes as parameters.
+
+template <>
+struct TupleTypes< Tuple0 > {
+  typedef Tuple0 ValueTuple;
+  typedef Tuple0 RefTuple;
+  typedef Tuple0 ParamTuple;
+};
+
+template <class A>
+struct TupleTypes< Tuple1<A> > {
+  typedef Tuple1<typename TupleTraits<A>::ValueType> ValueTuple;
+  typedef Tuple1<typename TupleTraits<A>::RefType> RefTuple;
+  typedef Tuple1<typename TupleTraits<A>::ParamType> ParamTuple;
+};
+
+template <class A, class B>
+struct TupleTypes< Tuple2<A, B> > {
+  typedef Tuple2<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType> ValueTuple;
+typedef Tuple2<typename TupleTraits<A>::RefType,
+               typename TupleTraits<B>::RefType> RefTuple;
+  typedef Tuple2<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C>
+struct TupleTypes< Tuple3<A, B, C> > {
+  typedef Tuple3<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType,
+                 typename TupleTraits<C>::ValueType> ValueTuple;
+typedef Tuple3<typename TupleTraits<A>::RefType,
+               typename TupleTraits<B>::RefType,
+               typename TupleTraits<C>::RefType> RefTuple;
+  typedef Tuple3<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C, class D>
+struct TupleTypes< Tuple4<A, B, C, D> > {
+  typedef Tuple4<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType,
+                 typename TupleTraits<C>::ValueType,
+                 typename TupleTraits<D>::ValueType> ValueTuple;
+typedef Tuple4<typename TupleTraits<A>::RefType,
+               typename TupleTraits<B>::RefType,
+               typename TupleTraits<C>::RefType,
+               typename TupleTraits<D>::RefType> RefTuple;
+  typedef Tuple4<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C, class D, class E>
+struct TupleTypes< Tuple5<A, B, C, D, E> > {
+  typedef Tuple5<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType,
+                 typename TupleTraits<C>::ValueType,
+                 typename TupleTraits<D>::ValueType,
+                 typename TupleTraits<E>::ValueType> ValueTuple;
+typedef Tuple5<typename TupleTraits<A>::RefType,
+               typename TupleTraits<B>::RefType,
+               typename TupleTraits<C>::RefType,
+               typename TupleTraits<D>::RefType,
+               typename TupleTraits<E>::RefType> RefTuple;
+  typedef Tuple5<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType,
+                 typename TupleTraits<E>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C, class D, class E, class F>
+struct TupleTypes< Tuple6<A, B, C, D, E, F> > {
+  typedef Tuple6<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType,
+                 typename TupleTraits<C>::ValueType,
+                 typename TupleTraits<D>::ValueType,
+                 typename TupleTraits<E>::ValueType,
+                 typename TupleTraits<F>::ValueType> ValueTuple;
+typedef Tuple6<typename TupleTraits<A>::RefType,
+               typename TupleTraits<B>::RefType,
+               typename TupleTraits<C>::RefType,
+               typename TupleTraits<D>::RefType,
+               typename TupleTraits<E>::RefType,
+               typename TupleTraits<F>::RefType> RefTuple;
+  typedef Tuple6<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType,
+                 typename TupleTraits<E>::ParamType,
+                 typename TupleTraits<F>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C, class D, class E, class F, class G>
+struct TupleTypes< Tuple7<A, B, C, D, E, F, G> > {
+  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;
+  typedef Tuple7<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType,
+                 typename TupleTraits<E>::ParamType,
+                 typename TupleTraits<F>::ParamType,
+                 typename TupleTraits<G>::ParamType> ParamTuple;
+};
+
+template <class A, class B, class C, class D, class E, class F, class G,
+          class H>
+struct TupleTypes< Tuple8<A, B, C, D, E, F, G, H> > {
+  typedef Tuple8<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,
+                 typename TupleTraits<H>::ValueType> ValueTuple;
+typedef Tuple8<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,
+               typename TupleTraits<H>::RefType> RefTuple;
+  typedef Tuple8<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType,
+                 typename TupleTraits<E>::ParamType,
+                 typename TupleTraits<F>::ParamType,
+                 typename TupleTraits<G>::ParamType,
+                 typename TupleTraits<H>::ParamType> ParamTuple;
+};
+
 // Tuple creators -------------------------------------------------------------
 //
 // Helper functions for constructing tuples while inferring the template