Move Pickle to base namespace.

ipc/ipc_message_utils.h

 // 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.
 
 #ifndef IPC_IPC_MESSAGE_UTILS_H_
 #define IPC_IPC_MESSAGE_UTILS_H_
 
 #include <algorithm>
 #include <map>
 #include <set>
@@ skipping 79 matching lines @@
 };
 
 template <class P>
 static inline void WriteParam(Message* m, const P& p) {
   typedef typename SimilarTypeTraits<P>::Type Type;
   ParamTraits<Type>::Write(m, static_cast<const Type& >(p));
 }
 
 template <class P>
 static inline bool WARN_UNUSED_RESULT ReadParam(const Message* m,
-                                                PickleIterator* iter,
+                                                base::PickleIterator* iter,
                                                 P* p) {
   typedef typename SimilarTypeTraits<P>::Type Type;
   return ParamTraits<Type>::Read(m, iter, reinterpret_cast<Type* >(p));
 }
 
 template <class P>
 static inline void LogParam(const P& p, std::string* l) {
   typedef typename SimilarTypeTraits<P>::Type Type;
   ParamTraits<Type>::Log(static_cast<const Type& >(p), l);
 }
 
 // Primitive ParamTraits -------------------------------------------------------
 
 template <>
 struct ParamTraits<bool> {
   typedef bool param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteBool(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadBool(r);
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<unsigned char> {
   typedef unsigned char param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<unsigned short> {
   typedef unsigned short param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<int> {
   typedef int param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteInt(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadInt(r);
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<unsigned int> {
   typedef unsigned int param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteInt(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadInt(reinterpret_cast<int*>(r));
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<long> {
   typedef long param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteLongUsingDangerousNonPortableLessPersistableForm(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadLong(r);
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<unsigned long> {
   typedef unsigned long param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteLongUsingDangerousNonPortableLessPersistableForm(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadLong(reinterpret_cast<long*>(r));
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<long long> {
   typedef long long param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteInt64(static_cast<int64>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     return iter->ReadInt64(reinterpret_cast<int64*>(r));
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<unsigned long long> {
   typedef unsigned long long param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteInt64(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     return iter->ReadInt64(reinterpret_cast<int64*>(r));
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 // Note that the IPC layer doesn't sanitize NaNs and +/- INF values.  Clients
 // should be sure to check the sanity of these values after receiving them over
 // IPC.
 template <>
 struct IPC_EXPORT ParamTraits<float> {
   typedef float param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteFloat(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return iter->ReadFloat(r);
   }
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<double> {
   typedef double param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 // STL ParamTraits -------------------------------------------------------------
 
 template <>
 struct ParamTraits<std::string> {
   typedef std::string param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteString(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     return iter->ReadString(r);
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<base::string16> {
   typedef base::string16 param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteString16(p);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     return iter->ReadString16(r);
   }
   IPC_EXPORT static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<std::vector<char> > {
   typedef std::vector<char> param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message*, PickleIterator* iter, param_type* r);
+  static bool Read(const Message*, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<std::vector<unsigned char> > {
   typedef std::vector<unsigned char> param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<std::vector<bool> > {
   typedef std::vector<bool> param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <class P>
 struct ParamTraits<std::vector<P> > {
   typedef std::vector<P> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, static_cast<int>(p.size()));
     for (size_t i = 0; i < p.size(); i++)
       WriteParam(m, p[i]);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     int size;
     // ReadLength() checks for < 0 itself.
     if (!iter->ReadLength(&size))
       return false;
     // Resizing beforehand is not safe, see BUG 1006367 for details.
     if (INT_MAX / sizeof(P) <= static_cast<size_t>(size))
       return false;
     r->resize(size);
     for (int i = 0; i < size; i++) {
@@ skipping 13 matching lines @@
 
 template <class P>
 struct ParamTraits<std::set<P> > {
   typedef std::set<P> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, static_cast<int>(p.size()));
     typename param_type::const_iterator iter;
     for (iter = p.begin(); iter != p.end(); ++iter)
       WriteParam(m, *iter);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     int size;
     if (!iter->ReadLength(&size))
       return false;
     for (int i = 0; i < size; ++i) {
       P item;
       if (!ReadParam(m, iter, &item))
         return false;
       r->insert(item);
     }
     return true;
   }
   static void Log(const param_type& p, std::string* l) {
     l->append("<std::set>");
   }
 };
 
 template <class K, class V, class C, class A>
 struct ParamTraits<std::map<K, V, C, A> > {
   typedef std::map<K, V, C, A> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, static_cast<int>(p.size()));
     typename param_type::const_iterator iter;
     for (iter = p.begin(); iter != p.end(); ++iter) {
       WriteParam(m, iter->first);
       WriteParam(m, iter->second);
     }
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     int size;
     if (!ReadParam(m, iter, &size) || size < 0)
       return false;
     for (int i = 0; i < size; ++i) {
       K k;
       if (!ReadParam(m, iter, &k))
         return false;
       V& value = (*r)[k];
       if (!ReadParam(m, iter, &value))
         return false;
     }
     return true;
   }
   static void Log(const param_type& p, std::string* l) {
     l->append("<std::map>");
   }
 };
 
 template <class A, class B>
 struct ParamTraits<std::pair<A, B> > {
   typedef std::pair<A, B> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, p.first);
     WriteParam(m, p.second);
   }
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r) {
     return ReadParam(m, iter, &r->first) && ReadParam(m, iter, &r->second);
   }
   static void Log(const param_type& p, std::string* l) {
     l->append("(");
     LogParam(p.first, l);
     l->append(", ");
     LogParam(p.second, l);
     l->append(")");
   }
 };
 
 // Base ParamTraits ------------------------------------------------------------
 
 template <>
 struct IPC_EXPORT ParamTraits<base::DictionaryValue> {
   typedef base::DictionaryValue param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 #if defined(OS_POSIX)
 // FileDescriptors may be serialised over IPC channels on POSIX. On the
 // receiving side, the FileDescriptor is a valid duplicate of the file
 // descriptor which was transmitted: *it is not just a copy of the integer like
 // HANDLEs on Windows*. The only exception is if the file descriptor is < 0. In
 // this case, the receiving end will see a value of -1. *Zero is a valid file
 // descriptor*.
 //
 // The received file descriptor will have the |auto_close| flag set to true. The
 // code which handles the message is responsible for taking ownership of it.
 // File descriptors are OS resources and must be closed when no longer needed.
 //
 // When sending a file descriptor, the file descriptor must be valid at the time
 // of transmission. Since transmission is not synchronous, one should consider
 // dup()ing any file descriptors to be transmitted and setting the |auto_close|
 // flag, which causes the file descriptor to be closed after writing.
 template<>
 struct IPC_EXPORT ParamTraits<base::FileDescriptor> {
   typedef base::FileDescriptor param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 #endif  // defined(OS_POSIX)
 
 template <>
 struct IPC_EXPORT ParamTraits<base::FilePath> {
   typedef base::FilePath param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::ListValue> {
   typedef base::ListValue param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::NullableString16> {
   typedef base::NullableString16 param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter,
+  static bool Read(const Message* m, base::PickleIterator* iter,
                    param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::File::Info> {
   typedef base::File::Info param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct SimilarTypeTraits<base::File::Error> {
   typedef int Type;
 };
 
 #if defined(OS_WIN)
 template <>
 struct SimilarTypeTraits<HWND> {
   typedef HANDLE Type;
 };
 #endif  // defined(OS_WIN)
 
 template <>
 struct IPC_EXPORT ParamTraits<base::Time> {
   typedef base::Time param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::TimeDelta> {
   typedef base::TimeDelta param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::TimeTicks> {
   typedef base::TimeTicks param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<base::TraceTicks> {
   typedef base::TraceTicks param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct ParamTraits<base::Tuple<>> {
   typedef base::Tuple<> param_type;
   static void Write(Message* m, const param_type& p) {
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return true;
   }
   static void Log(const param_type& p, std::string* l) {
   }
 };
 
 template <class A>
 struct ParamTraits<base::Tuple<A>> {
   typedef base::Tuple<A> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, base::get<0>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return ReadParam(m, iter, &base::get<0>(*r));
   }
   static void Log(const param_type& p, std::string* l) {
     LogParam(base::get<0>(p), l);
   }
 };
 
 template <class A, class B>
 struct ParamTraits<base::Tuple<A, B>> {
   typedef base::Tuple<A, B> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, base::get<0>(p));
     WriteParam(m, base::get<1>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return (ReadParam(m, iter, &base::get<0>(*r)) &&
             ReadParam(m, iter, &base::get<1>(*r)));
   }
   static void Log(const param_type& p, std::string* l) {
     LogParam(base::get<0>(p), l);
     l->append(", ");
     LogParam(base::get<1>(p), l);
   }
 };
 
 template <class A, class B, class C>
 struct ParamTraits<base::Tuple<A, B, C>> {
   typedef base::Tuple<A, B, C> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, base::get<0>(p));
     WriteParam(m, base::get<1>(p));
     WriteParam(m, base::get<2>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return (ReadParam(m, iter, &base::get<0>(*r)) &&
             ReadParam(m, iter, &base::get<1>(*r)) &&
             ReadParam(m, iter, &base::get<2>(*r)));
   }
   static void Log(const param_type& p, std::string* l) {
     LogParam(base::get<0>(p), l);
     l->append(", ");
     LogParam(base::get<1>(p), l);
     l->append(", ");
     LogParam(base::get<2>(p), l);
   }
 };
 
 template <class A, class B, class C, class D>
 struct ParamTraits<base::Tuple<A, B, C, D>> {
   typedef base::Tuple<A, B, C, D> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, base::get<0>(p));
     WriteParam(m, base::get<1>(p));
     WriteParam(m, base::get<2>(p));
     WriteParam(m, base::get<3>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return (ReadParam(m, iter, &base::get<0>(*r)) &&
             ReadParam(m, iter, &base::get<1>(*r)) &&
             ReadParam(m, iter, &base::get<2>(*r)) &&
             ReadParam(m, iter, &base::get<3>(*r)));
   }
   static void Log(const param_type& p, std::string* l) {
     LogParam(base::get<0>(p), l);
     l->append(", ");
     LogParam(base::get<1>(p), l);
     l->append(", ");
     LogParam(base::get<2>(p), l);
     l->append(", ");
     LogParam(base::get<3>(p), l);
   }
 };
 
 template <class A, class B, class C, class D, class E>
 struct ParamTraits<base::Tuple<A, B, C, D, E>> {
   typedef base::Tuple<A, B, C, D, E> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, base::get<0>(p));
     WriteParam(m, base::get<1>(p));
     WriteParam(m, base::get<2>(p));
     WriteParam(m, base::get<3>(p));
     WriteParam(m, base::get<4>(p));
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     return (ReadParam(m, iter, &base::get<0>(*r)) &&
             ReadParam(m, iter, &base::get<1>(*r)) &&
             ReadParam(m, iter, &base::get<2>(*r)) &&
             ReadParam(m, iter, &base::get<3>(*r)) &&
             ReadParam(m, iter, &base::get<4>(*r)));
   }
   static void Log(const param_type& p, std::string* l) {
     LogParam(base::get<0>(p), l);
     l->append(", ");
     LogParam(base::get<1>(p), l);
     l->append(", ");
     LogParam(base::get<2>(p), l);
     l->append(", ");
     LogParam(base::get<3>(p), l);
     l->append(", ");
     LogParam(base::get<4>(p), l);
   }
 };
 
 template<class P>
 struct ParamTraits<ScopedVector<P> > {
   typedef ScopedVector<P> param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, static_cast<int>(p.size()));
     for (size_t i = 0; i < p.size(); i++)
       WriteParam(m, *p[i]);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     int size = 0;
     if (!iter->ReadLength(&size))
       return false;
     if (INT_MAX/sizeof(P) <= static_cast<size_t>(size))
       return false;
     r->resize(size);
     for (int i = 0; i < size; i++) {
       (*r)[i] = new P();
       if (!ReadParam(m, iter, (*r)[i]))
         return false;
@@ skipping 18 matching lines @@
   typedef typename param_type::key_type K;
   typedef typename param_type::data_type V;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, static_cast<int>(p.size()));
     typename param_type::const_iterator iter;
     for (iter = p.begin(); iter != p.end(); ++iter) {
       WriteParam(m, iter->first);
       WriteParam(m, iter->second);
     }
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     int size;
     if (!iter->ReadLength(&size))
       return false;
     for (int i = 0; i < size; ++i) {
       K key;
       if (!ReadParam(m, iter, &key))
         return false;
       V& value = (*r)[key];
       if (!ReadParam(m, iter, &value))
         return false;
     }
     return true;
   }
   static void Log(const param_type& p, std::string* l) {
     l->append("<base::SmallMap>");
   }
 };
 
 template <class P>
 struct ParamTraits<scoped_ptr<P> > {
   typedef scoped_ptr<P> param_type;
   static void Write(Message* m, const param_type& p) {
     bool valid = !!p;
     WriteParam(m, valid);
     if (valid)
       WriteParam(m, *p);
   }
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
+  static bool Read(const Message* m, base::PickleIterator* iter,
+                   param_type* r) {
     bool valid = false;
     if (!ReadParam(m, iter, &valid))
       return false;
 
     if (!valid) {
       r->reset();
       return true;
     }
 
     param_type temp(new P());
@@ skipping 13 matching lines @@
 
 // IPC types ParamTraits -------------------------------------------------------
 
 // A ChannelHandle is basically a platform-inspecific wrapper around the
 // fact that IPC endpoints are handled specially on POSIX.  See above comments
 // on FileDescriptor for more background.
 template<>
 struct IPC_EXPORT ParamTraits<IPC::ChannelHandle> {
   typedef ChannelHandle param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<LogData> {
   typedef LogData param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<Message> {
   static void Write(Message* m, const Message& p);
-  static bool Read(const Message* m, PickleIterator* iter, Message* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, Message* r);
   static void Log(const Message& p, std::string* l);
 };
 
 // Windows ParamTraits ---------------------------------------------------------
 
 #if defined(OS_WIN)
 template <>
 struct IPC_EXPORT ParamTraits<HANDLE> {
   typedef HANDLE param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<LOGFONT> {
   typedef LOGFONT param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct IPC_EXPORT ParamTraits<MSG> {
   typedef MSG param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 #endif  // defined(OS_WIN)
 
 //-----------------------------------------------------------------------------
 // Generic message subclasses
 
 // Used for asynchronous messages.
 template <class ParamType>
 class MessageSchema {
@@ skipping 53 matching lines @@
 
 // This class assumes that its template argument is a RefTuple (a Tuple with
 // reference elements). This would go into ipc_message_utils_impl.h, but it is
 // also used by chrome_frame.
 template <class RefTuple>
 class ParamDeserializer : public MessageReplyDeserializer {
  public:
   explicit ParamDeserializer(const RefTuple& out) : out_(out) { }
 
   bool SerializeOutputParameters(const IPC::Message& msg,
-                                 PickleIterator iter) override {
+                                 base::PickleIterator iter) override {
     return ReadParam(&msg, &iter, &out_);
   }
 
   RefTuple out_;
 };
 
 // Used for synchronous messages.
 template <class SendParamType, class ReplyParamType>
 class SyncMessageSchema {
  public:
@@ skipping 46 matching lines @@
   template <typename... Ts>
   static void WriteReplyParams(Message* reply, Ts... args) {
     ReplyParam p(args...);
     WriteParam(reply, p);
   }
 };
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_MESSAGE_UTILS_H_