IPC::Message -> base::Pickle

ipc/ipc_message_utils.cc

 // 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.
 
 #include "ipc/ipc_message_utils.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/files/file_path.h"
@@ skipping 49 matching lines @@
           base::StringPrintf("[%02X]", static_cast<unsigned char>(data[i])));
   }
   if (data.size() > kMaxBytesToLog) {
     out->append(base::StringPrintf(
         " and %u more bytes",
         static_cast<unsigned>(data.size() - kMaxBytesToLog)));
   }
 #endif
 }
 
-bool ReadValue(const Message* m,
+bool ReadValue(const base::Pickle* m,
                base::PickleIterator* iter,
                base::Value** value,
                int recursion);
 
-void WriteValue(Message* m, const base::Value* value, int recursion) {
+void WriteValue(base::Pickle* m, const base::Value* value, int recursion) {
   bool result;
   if (recursion > kMaxRecursionDepth) {
     LOG(WARNING) << "Max recursion depth hit in WriteValue.";
     return;
   }
 
   m->WriteInt(value->GetType());
 
   switch (value->GetType()) {
     case base::Value::TYPE_NULL:
@@ skipping 52 matching lines @@
            it != list->end(); ++it) {
         WriteValue(m, *it, recursion + 1);
       }
       break;
     }
   }
 }
 
 // Helper for ReadValue that reads a DictionaryValue into a pre-allocated
 // object.
-bool ReadDictionaryValue(const Message* m,
+bool ReadDictionaryValue(const base::Pickle* m,
                          base::PickleIterator* iter,
                          base::DictionaryValue* value,
                          int recursion) {
   int size;
   if (!ReadParam(m, iter, &size))
     return false;
 
   for (int i = 0; i < size; ++i) {
     std::string key;
     base::Value* subval;
     if (!ReadParam(m, iter, &key) ||
         !ReadValue(m, iter, &subval, recursion + 1))
       return false;
     value->SetWithoutPathExpansion(key, subval);
   }
 
   return true;
 }
 
 // Helper for ReadValue that reads a ReadListValue into a pre-allocated
 // object.
-bool ReadListValue(const Message* m,
+bool ReadListValue(const base::Pickle* m,
                    base::PickleIterator* iter,
                    base::ListValue* value,
                    int recursion) {
   int size;
   if (!ReadParam(m, iter, &size))
     return false;
 
   for (int i = 0; i < size; ++i) {
     base::Value* subval;
     if (!ReadValue(m, iter, &subval, recursion + 1))
       return false;
     value->Set(i, subval);
   }
 
   return true;
 }
 
-bool ReadValue(const Message* m,
+bool ReadValue(const base::Pickle* m,
                base::PickleIterator* iter,
                base::Value** value,
                int recursion) {
   if (recursion > kMaxRecursionDepth) {
     LOG(WARNING) << "Max recursion depth hit in ReadValue.";
     return false;
   }
 
   int type;
   if (!ReadParam(m, iter, &type))
@@ skipping 72 matching lines @@
       dispatch(0) {
 }
 
 LogData::~LogData() {
 }
 
 void ParamTraits<bool>::Log(const param_type& p, std::string* l) {
   l->append(p ? "true" : "false");
 }
 
-void ParamTraits<signed char>::Write(Message* m, const param_type& p) {
+void ParamTraits<signed char>::Write(base::Pickle* m, const param_type& p) {
   m->WriteBytes(&p, sizeof(param_type));
 }
 
-bool ParamTraits<signed char>::Read(const Message* m,
-                             base::PickleIterator* iter,
-                             param_type* r) {
+bool ParamTraits<signed char>::Read(const base::Pickle* m,
+                                    base::PickleIterator* iter,
+                                    param_type* r) {
   const char* data;
   if (!iter->ReadBytes(&data, sizeof(param_type)))
     return false;
   memcpy(r, data, sizeof(param_type));
   return true;
 }
 
 void ParamTraits<signed char>::Log(const param_type& p, std::string* l) {
   l->append(base::IntToString(p));
 }
 
-void ParamTraits<unsigned char>::Write(Message* m, const param_type& p) {
+void ParamTraits<unsigned char>::Write(base::Pickle* m, const param_type& p) {
   m->WriteBytes(&p, sizeof(param_type));
 }
 
-bool ParamTraits<unsigned char>::Read(const Message* m,
+bool ParamTraits<unsigned char>::Read(const base::Pickle* m,
                                       base::PickleIterator* iter,
                                       param_type* r) {
   const char* data;
   if (!iter->ReadBytes(&data, sizeof(param_type)))
     return false;
   memcpy(r, data, sizeof(param_type));
   return true;
 }
 
 void ParamTraits<unsigned char>::Log(const param_type& p, std::string* l) {
   l->append(base::UintToString(p));
 }
 
-void ParamTraits<unsigned short>::Write(Message* m, const param_type& p) {
+void ParamTraits<unsigned short>::Write(base::Pickle* m, const param_type& p) {
   m->WriteBytes(&p, sizeof(param_type));
 }
 
-bool ParamTraits<unsigned short>::Read(const Message* m,
+bool ParamTraits<unsigned short>::Read(const base::Pickle* m,
                                        base::PickleIterator* iter,
                                        param_type* r) {
   const char* data;
   if (!iter->ReadBytes(&data, sizeof(param_type)))
     return false;
   memcpy(r, data, sizeof(param_type));
   return true;
 }
 
 void ParamTraits<unsigned short>::Log(const param_type& p, std::string* l) {
@@ skipping 21 matching lines @@
 }
 
 void ParamTraits<unsigned long long>::Log(const param_type& p, std::string* l) {
   l->append(base::Uint64ToString(p));
 }
 
 void ParamTraits<float>::Log(const param_type& p, std::string* l) {
   l->append(base::StringPrintf("%e", p));
 }
 
-void ParamTraits<double>::Write(Message* m, const param_type& p) {
+void ParamTraits<double>::Write(base::Pickle* m, const param_type& p) {
   m->WriteBytes(reinterpret_cast<const char*>(&p), sizeof(param_type));
 }
 
-bool ParamTraits<double>::Read(const Message* m,
+bool ParamTraits<double>::Read(const base::Pickle* m,
                                base::PickleIterator* iter,
                                param_type* r) {
   const char *data;
   if (!iter->ReadBytes(&data, sizeof(*r))) {
     NOTREACHED();
     return false;
   }
   memcpy(r, data, sizeof(param_type));
   return true;
 }
 
 void ParamTraits<double>::Log(const param_type& p, std::string* l) {
   l->append(base::StringPrintf("%e", p));
 }
 
 
 void ParamTraits<std::string>::Log(const param_type& p, std::string* l) {
   l->append(p);
 }
 
 void ParamTraits<base::string16>::Log(const param_type& p, std::string* l) {
   l->append(base::UTF16ToUTF8(p));
 }
 
-void ParamTraits<std::vector<char> >::Write(Message* m, const param_type& p) {
+void ParamTraits<std::vector<char>>::Write(base::Pickle* m,
+                                           const param_type& p) {
   if (p.empty()) {
     m->WriteData(NULL, 0);
   } else {
     m->WriteData(&p.front(), static_cast<int>(p.size()));
   }
 }
 
-bool ParamTraits<std::vector<char>>::Read(const Message* m,
+bool ParamTraits<std::vector<char>>::Read(const base::Pickle* m,
                                           base::PickleIterator* iter,
                                           param_type* r) {
   const char *data;
   int data_size = 0;
   if (!iter->ReadData(&data, &data_size) || data_size < 0)
     return false;
   r->resize(data_size);
   if (data_size)
     memcpy(&r->front(), data, data_size);
   return true;
 }
 
 void ParamTraits<std::vector<char> >::Log(const param_type& p, std::string* l) {
   LogBytes(p, l);
 }
 
-void ParamTraits<std::vector<unsigned char> >::Write(Message* m,
-                                                     const param_type& p) {
+void ParamTraits<std::vector<unsigned char>>::Write(base::Pickle* m,
+                                                    const param_type& p) {
   if (p.empty()) {
     m->WriteData(NULL, 0);
   } else {
     m->WriteData(reinterpret_cast<const char*>(&p.front()),
                  static_cast<int>(p.size()));
   }
 }
 
-bool ParamTraits<std::vector<unsigned char>>::Read(const Message* m,
+bool ParamTraits<std::vector<unsigned char>>::Read(const base::Pickle* m,
                                                    base::PickleIterator* iter,
                                                    param_type* r) {
   const char *data;
   int data_size = 0;
   if (!iter->ReadData(&data, &data_size) || data_size < 0)
     return false;
   r->resize(data_size);
   if (data_size)
     memcpy(&r->front(), data, data_size);
   return true;
 }
 
 void ParamTraits<std::vector<unsigned char> >::Log(const param_type& p,
                                                    std::string* l) {
   LogBytes(p, l);
 }
 
-void ParamTraits<std::vector<bool> >::Write(Message* m, const param_type& p) {
+void ParamTraits<std::vector<bool>>::Write(base::Pickle* m,
+                                           const param_type& p) {
   WriteParam(m, static_cast<int>(p.size()));
   // Cast to bool below is required because libc++'s
   // vector<bool>::const_reference is different from bool, and we want to avoid
   // writing an extra specialization of ParamTraits for it.
   for (size_t i = 0; i < p.size(); i++)
     WriteParam(m, static_cast<bool>(p[i]));
 }
 
-bool ParamTraits<std::vector<bool>>::Read(const Message* m,
+bool ParamTraits<std::vector<bool>>::Read(const base::Pickle* m,
                                           base::PickleIterator* iter,
                                           param_type* r) {
   int size;
   // ReadLength() checks for < 0 itself.
   if (!iter->ReadLength(&size))
     return false;
   r->resize(size);
   for (int i = 0; i < size; i++) {
     bool value;
     if (!ReadParam(m, iter, &value))
       return false;
     (*r)[i] = value;
   }
   return true;
 }
 
 void ParamTraits<std::vector<bool> >::Log(const param_type& p, std::string* l) {
   for (size_t i = 0; i < p.size(); ++i) {
     if (i != 0)
       l->push_back(' ');
     LogParam(static_cast<bool>(p[i]), l);
   }
 }
 
 void ParamTraits<BrokerableAttachment::AttachmentId>::Write(
-    Message* m,
+    base::Pickle* m,
     const param_type& p) {
   m->WriteBytes(p.nonce, BrokerableAttachment::kNonceSize);
 }
 
 bool ParamTraits<BrokerableAttachment::AttachmentId>::Read(
-    const Message* m,
+    const base::Pickle* m,
     base::PickleIterator* iter,
     param_type* r) {
   const char* data;
   if (!iter->ReadBytes(&data, BrokerableAttachment::kNonceSize))
     return false;
   memcpy(r->nonce, data, BrokerableAttachment::kNonceSize);
   return true;
 }
 
 void ParamTraits<BrokerableAttachment::AttachmentId>::Log(const param_type& p,
                                                           std::string* l) {
   l->append(base::HexEncode(p.nonce, BrokerableAttachment::kNonceSize));
 }
 
-void ParamTraits<base::DictionaryValue>::Write(Message* m,
+void ParamTraits<base::DictionaryValue>::Write(base::Pickle* m,
                                                const param_type& p) {
   WriteValue(m, &p, 0);
 }
 
-bool ParamTraits<base::DictionaryValue>::Read(const Message* m,
+bool ParamTraits<base::DictionaryValue>::Read(const base::Pickle* m,
                                               base::PickleIterator* iter,
                                               param_type* r) {
   int type;
   if (!ReadParam(m, iter, &type) || type != base::Value::TYPE_DICTIONARY)
     return false;
 
   return ReadDictionaryValue(m, iter, r, 0);
 }
 
 void ParamTraits<base::DictionaryValue>::Log(const param_type& p,
                                              std::string* l) {
   std::string json;
   base::JSONWriter::Write(p, &json);
   l->append(json);
 }
 
 #if defined(OS_POSIX)
-void ParamTraits<base::FileDescriptor>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::FileDescriptor>::Write(base::Pickle* m,
+                                              const param_type& p) {
   const bool valid = p.fd >= 0;
   WriteParam(m, valid);
 
   if (!valid)
     return;
 
   if (p.auto_close) {
     if (!m->WriteAttachment(
             new internal::PlatformFileAttachment(base::ScopedFD(p.fd))))
       NOTREACHED();
   } else {
     if (!m->WriteAttachment(new internal::PlatformFileAttachment(p.fd)))
       NOTREACHED();
   }
 }
 
-bool ParamTraits<base::FileDescriptor>::Read(const Message* m,
+bool ParamTraits<base::FileDescriptor>::Read(const base::Pickle* m,
                                              base::PickleIterator* iter,
                                              param_type* r) {
   *r = base::FileDescriptor();
 
   bool valid;
   if (!ReadParam(m, iter, &valid))
     return false;
 
   // TODO(morrita): Seems like this should return false.
   if (!valid)
     return true;
 
-  scoped_refptr<MessageAttachment> attachment;
+  scoped_refptr<base::Pickle::Attachment> attachment;
   if (!m->ReadAttachment(iter, &attachment))
     return false;
 
-  *r = base::FileDescriptor(attachment->TakePlatformFile(), true);
+  *r = base::FileDescriptor(
+      static_cast<MessageAttachment*>(attachment.get())->TakePlatformFile(),
+      true);
   return true;
 }
 
 void ParamTraits<base::FileDescriptor>::Log(const param_type& p,
                                             std::string* l) {
   if (p.auto_close) {
     l->append(base::StringPrintf("FD(%d auto-close)", p.fd));
   } else {
     l->append(base::StringPrintf("FD(%d)", p.fd));
   }
 }
 #endif  // defined(OS_POSIX)
 
 #if defined(OS_MACOSX) && !defined(OS_IOS)
-void ParamTraits<base::SharedMemoryHandle>::Write(Message* m,
+void ParamTraits<base::SharedMemoryHandle>::Write(base::Pickle* m,
                                                   const param_type& p) {
   m->WriteInt(p.GetType());
 
   switch (p.GetType()) {
     case base::SharedMemoryHandle::POSIX:
       ParamTraits<base::FileDescriptor>::Write(m, p.GetFileDescriptor());
       break;
     case base::SharedMemoryHandle::MACH:
       MachPortMac mach_port_mac(p.GetMemoryObject());
       ParamTraits<MachPortMac>::Write(m, mach_port_mac);
       size_t size = 0;
       bool result = p.GetSize(&size);
       DCHECK(result);
       ParamTraits<size_t>::Write(m, size);
 
       // If the caller intended to pass ownership to the IPC stack, release a
       // reference.
       if (p.OwnershipPassesToIPC())
         p.Close();
 
       break;
   }
 }
 
-bool ParamTraits<base::SharedMemoryHandle>::Read(const Message* m,
+bool ParamTraits<base::SharedMemoryHandle>::Read(const base::Pickle* m,
                                                  base::PickleIterator* iter,
                                                  param_type* r) {
   base::SharedMemoryHandle::TypeWireFormat type;
   if (!iter->ReadInt(&type))
     return false;
 
   base::SharedMemoryHandle::Type shm_type = base::SharedMemoryHandle::POSIX;
   switch (type) {
     case base::SharedMemoryHandle::POSIX:
     case base::SharedMemoryHandle::MACH: {
@@ skipping 42 matching lines @@
       ParamTraits<base::FileDescriptor>::Log(p.GetFileDescriptor(), l);
       break;
     case base::SharedMemoryHandle::MACH:
       l->append("Mach port: ");
       LogParam(p.GetMemoryObject(), l);
       break;
   }
 }
 
 #elif defined(OS_WIN)
-void ParamTraits<base::SharedMemoryHandle>::Write(Message* m,
+void ParamTraits<base::SharedMemoryHandle>::Write(base::Pickle* m,
                                                   const param_type& p) {
   m->WriteBool(p.NeedsBrokering());
 
   if (p.NeedsBrokering()) {
     HandleWin handle_win(p.GetHandle(), HandleWin::DUPLICATE);
     ParamTraits<HandleWin>::Write(m, handle_win);
   } else {
     m->WriteInt(HandleToLong(p.GetHandle()));
   }
 }
 
-bool ParamTraits<base::SharedMemoryHandle>::Read(const Message* m,
+bool ParamTraits<base::SharedMemoryHandle>::Read(const base::Pickle* m,
                                                  base::PickleIterator* iter,
                                                  param_type* r) {
   bool needs_brokering;
   if (!iter->ReadBool(&needs_brokering))
     return false;
 
   if (needs_brokering) {
     HandleWin handle_win;
     if (!ParamTraits<HandleWin>::Read(m, iter, &handle_win))
       return false;
@@ skipping 11 matching lines @@
 }
 
 void ParamTraits<base::SharedMemoryHandle>::Log(const param_type& p,
                                                 std::string* l) {
   LogParam(p.GetHandle(), l);
   l->append(" needs brokering: ");
   LogParam(p.NeedsBrokering(), l);
 }
 #endif  // defined(OS_MACOSX) && !defined(OS_IOS)
 
-void ParamTraits<base::FilePath>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::FilePath>::Write(base::Pickle* m, const param_type& p) {
   p.WriteToPickle(m);
 }
 
-bool ParamTraits<base::FilePath>::Read(const Message* m,
+bool ParamTraits<base::FilePath>::Read(const base::Pickle* m,
                                        base::PickleIterator* iter,
                                        param_type* r) {
   return r->ReadFromPickle(iter);
 }
 
 void ParamTraits<base::FilePath>::Log(const param_type& p, std::string* l) {
   ParamTraits<base::FilePath::StringType>::Log(p.value(), l);
 }
 
-void ParamTraits<base::ListValue>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::ListValue>::Write(base::Pickle* m, const param_type& p) {
   WriteValue(m, &p, 0);
 }
 
-bool ParamTraits<base::ListValue>::Read(const Message* m,
+bool ParamTraits<base::ListValue>::Read(const base::Pickle* m,
                                         base::PickleIterator* iter,
                                         param_type* r) {
   int type;
   if (!ReadParam(m, iter, &type) || type != base::Value::TYPE_LIST)
     return false;
 
   return ReadListValue(m, iter, r, 0);
 }
 
 void ParamTraits<base::ListValue>::Log(const param_type& p, std::string* l) {
   std::string json;
   base::JSONWriter::Write(p, &json);
   l->append(json);
 }
 
-void ParamTraits<base::NullableString16>::Write(Message* m,
+void ParamTraits<base::NullableString16>::Write(base::Pickle* m,
                                                 const param_type& p) {
   WriteParam(m, p.string());
   WriteParam(m, p.is_null());
 }
 
-bool ParamTraits<base::NullableString16>::Read(const Message* m,
+bool ParamTraits<base::NullableString16>::Read(const base::Pickle* m,
                                                base::PickleIterator* iter,
                                                param_type* r) {
   base::string16 string;
   if (!ReadParam(m, iter, &string))
     return false;
   bool is_null;
   if (!ReadParam(m, iter, &is_null))
     return false;
   *r = base::NullableString16(string, is_null);
   return true;
 }
 
 void ParamTraits<base::NullableString16>::Log(const param_type& p,
                                               std::string* l) {
   l->append("(");
   LogParam(p.string(), l);
   l->append(", ");
   LogParam(p.is_null(), l);
   l->append(")");
 }
 
-void ParamTraits<base::File::Info>::Write(Message* m,
+void ParamTraits<base::File::Info>::Write(base::Pickle* m,
                                           const param_type& p) {
   WriteParam(m, p.size);
   WriteParam(m, p.is_directory);
   WriteParam(m, p.last_modified.ToDoubleT());
   WriteParam(m, p.last_accessed.ToDoubleT());
   WriteParam(m, p.creation_time.ToDoubleT());
 }
 
-bool ParamTraits<base::File::Info>::Read(const Message* m,
+bool ParamTraits<base::File::Info>::Read(const base::Pickle* m,
                                          base::PickleIterator* iter,
                                          param_type* p) {
   double last_modified, last_accessed, creation_time;
   if (!ReadParam(m, iter, &p->size) ||
       !ReadParam(m, iter, &p->is_directory) ||
       !ReadParam(m, iter, &last_modified) ||
       !ReadParam(m, iter, &last_accessed) ||
       !ReadParam(m, iter, &creation_time))
     return false;
   p->last_modified = base::Time::FromDoubleT(last_modified);
@@ skipping 10 matching lines @@
   LogParam(p.is_directory, l);
   l->append(",");
   LogParam(p.last_modified.ToDoubleT(), l);
   l->append(",");
   LogParam(p.last_accessed.ToDoubleT(), l);
   l->append(",");
   LogParam(p.creation_time.ToDoubleT(), l);
   l->append(")");
 }
 
-void ParamTraits<base::Time>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::Time>::Write(base::Pickle* m, const param_type& p) {
   ParamTraits<int64_t>::Write(m, p.ToInternalValue());
 }
 
-bool ParamTraits<base::Time>::Read(const Message* m,
+bool ParamTraits<base::Time>::Read(const base::Pickle* m,
                                    base::PickleIterator* iter,
                                    param_type* r) {
   int64_t value;
   if (!ParamTraits<int64_t>::Read(m, iter, &value))
     return false;
   *r = base::Time::FromInternalValue(value);
   return true;
 }
 
 void ParamTraits<base::Time>::Log(const param_type& p, std::string* l) {
   ParamTraits<int64_t>::Log(p.ToInternalValue(), l);
 }
 
-void ParamTraits<base::TimeDelta>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::TimeDelta>::Write(base::Pickle* m, const param_type& p) {
   ParamTraits<int64_t>::Write(m, p.ToInternalValue());
 }
 
-bool ParamTraits<base::TimeDelta>::Read(const Message* m,
+bool ParamTraits<base::TimeDelta>::Read(const base::Pickle* m,
                                         base::PickleIterator* iter,
                                         param_type* r) {
   int64_t value;
   bool ret = ParamTraits<int64_t>::Read(m, iter, &value);
   if (ret)
     *r = base::TimeDelta::FromInternalValue(value);
 
   return ret;
 }
 
 void ParamTraits<base::TimeDelta>::Log(const param_type& p, std::string* l) {
   ParamTraits<int64_t>::Log(p.ToInternalValue(), l);
 }
 
-void ParamTraits<base::TimeTicks>::Write(Message* m, const param_type& p) {
+void ParamTraits<base::TimeTicks>::Write(base::Pickle* m, const param_type& p) {
   ParamTraits<int64_t>::Write(m, p.ToInternalValue());
 }
 
-bool ParamTraits<base::TimeTicks>::Read(const Message* m,
+bool ParamTraits<base::TimeTicks>::Read(const base::Pickle* m,
                                         base::PickleIterator* iter,
                                         param_type* r) {
   int64_t value;
   bool ret = ParamTraits<int64_t>::Read(m, iter, &value);
   if (ret)
     *r = base::TimeTicks::FromInternalValue(value);
 
   return ret;
 }
 
 void ParamTraits<base::TimeTicks>::Log(const param_type& p, std::string* l) {
   ParamTraits<int64_t>::Log(p.ToInternalValue(), l);
 }
 
-void ParamTraits<IPC::ChannelHandle>::Write(Message* m, const param_type& p) {
+void ParamTraits<IPC::ChannelHandle>::Write(base::Pickle* m,
+                                            const param_type& p) {
 #if defined(OS_WIN)
   // On Windows marshalling pipe handle is not supported.
   DCHECK(p.pipe.handle == NULL);
 #endif  // defined (OS_WIN)
   WriteParam(m, p.name);
 #if defined(OS_POSIX)
   WriteParam(m, p.socket);
 #endif
 }
 
-bool ParamTraits<IPC::ChannelHandle>::Read(const Message* m,
+bool ParamTraits<IPC::ChannelHandle>::Read(const base::Pickle* m,
                                            base::PickleIterator* iter,
                                            param_type* r) {
   return ReadParam(m, iter, &r->name)
 #if defined(OS_POSIX)
       && ReadParam(m, iter, &r->socket)
 #endif
       ;
 }
 
 void ParamTraits<IPC::ChannelHandle>::Log(const param_type& p,
                                           std::string* l) {
   l->append(base::StringPrintf("ChannelHandle(%s", p.name.c_str()));
 #if defined(OS_POSIX)
   l->append(", ");
   ParamTraits<base::FileDescriptor>::Log(p.socket, l);
 #endif
   l->append(")");
 }
 
-void ParamTraits<LogData>::Write(Message* m, const param_type& p) {
+void ParamTraits<LogData>::Write(base::Pickle* m, const param_type& p) {
   WriteParam(m, p.channel);
   WriteParam(m, p.routing_id);
   WriteParam(m, p.type);
   WriteParam(m, p.flags);
   WriteParam(m, p.sent);
   WriteParam(m, p.receive);
   WriteParam(m, p.dispatch);
   WriteParam(m, p.message_name);
   WriteParam(m, p.params);
 }
 
-bool ParamTraits<LogData>::Read(const Message* m,
+bool ParamTraits<LogData>::Read(const base::Pickle* m,
                                 base::PickleIterator* iter,
                                 param_type* r) {
   return
       ReadParam(m, iter, &r->channel) &&
       ReadParam(m, iter, &r->routing_id) &&
       ReadParam(m, iter, &r->type) &&
       ReadParam(m, iter, &r->flags) &&
       ReadParam(m, iter, &r->sent) &&
       ReadParam(m, iter, &r->receive) &&
       ReadParam(m, iter, &r->dispatch) &&
       ReadParam(m, iter, &r->message_name) &&
       ReadParam(m, iter, &r->params);
 }
 
 void ParamTraits<LogData>::Log(const param_type& p, std::string* l) {
   // Doesn't make sense to implement this!
 }
 
-void ParamTraits<Message>::Write(Message* m, const Message& p) {
+void ParamTraits<Message>::Write(base::Pickle* m, const Message& p) {
 #if defined(OS_POSIX)
   // We don't serialize the file descriptors in the nested message, so there
   // better not be any.
   DCHECK(!p.HasAttachments());
 #endif
 
   // Don't just write out the message. This is used to send messages between
   // NaCl (Posix environment) and the browser (could be on Windows). The message
   // header formats differ between these systems (so does handle sharing, but
   // we already asserted we don't have any handles). So just write out the
   // parts of the header we use.
   //
   // Be careful also to use only explicitly-sized types. The NaCl environment
   // could be 64-bit and the host browser could be 32-bits. The nested message
   // may or may not be safe to send between 32-bit and 64-bit systems, but we
   // leave that up to the code sending the message to ensure.
   m->WriteUInt32(static_cast<uint32_t>(p.routing_id()));
   m->WriteUInt32(p.type());
   m->WriteUInt32(p.flags());
   m->WriteData(p.payload(), static_cast<uint32_t>(p.payload_size()));
 }
 
-bool ParamTraits<Message>::Read(const Message* m,
+bool ParamTraits<Message>::Read(const base::Pickle* m,
                                 base::PickleIterator* iter,
                                 Message* r) {
   uint32_t routing_id, type, flags;
   if (!iter->ReadUInt32(&routing_id) ||
       !iter->ReadUInt32(&type) ||
       !iter->ReadUInt32(&flags))
     return false;
 
   int payload_size;
   const char* payload;
   if (!iter->ReadData(&payload, &payload_size))
     return false;
 
   r->SetHeaderValues(static_cast<int32_t>(routing_id), type, flags);
   return r->WriteBytes(payload, payload_size);
 }
 
 void ParamTraits<Message>::Log(const Message& p, std::string* l) {
   l->append("<IPC::Message>");
 }
 
 #if defined(OS_WIN)
 // Note that HWNDs/HANDLE/HCURSOR/HACCEL etc are always 32 bits, even on 64
 // bit systems. That's why we use the Windows macros to convert to 32 bits.
-void ParamTraits<HANDLE>::Write(Message* m, const param_type& p) {
+void ParamTraits<HANDLE>::Write(base::Pickle* m, const param_type& p) {
   m->WriteInt(HandleToLong(p));
 }
 
-bool ParamTraits<HANDLE>::Read(const Message* m,
+bool ParamTraits<HANDLE>::Read(const base::Pickle* m,
                                base::PickleIterator* iter,
                                param_type* r) {
   int32_t temp;
   if (!iter->ReadInt(&temp))
     return false;
   *r = LongToHandle(temp);
   return true;
 }
 
 void ParamTraits<HANDLE>::Log(const param_type& p, std::string* l) {
   l->append(base::StringPrintf("0x%p", p));
 }
 
-void ParamTraits<LOGFONT>::Write(Message* m, const param_type& p) {
+void ParamTraits<LOGFONT>::Write(base::Pickle* m, const param_type& p) {
   m->WriteData(reinterpret_cast<const char*>(&p), sizeof(LOGFONT));
 }
 
-bool ParamTraits<LOGFONT>::Read(const Message* m,
+bool ParamTraits<LOGFONT>::Read(const base::Pickle* m,
                                 base::PickleIterator* iter,
                                 param_type* r) {
   const char *data;
   int data_size = 0;
   if (iter->ReadData(&data, &data_size) && data_size == sizeof(LOGFONT)) {
     const LOGFONT *font = reinterpret_cast<LOGFONT*>(const_cast<char*>(data));
     if (_tcsnlen(font->lfFaceName, LF_FACESIZE) < LF_FACESIZE) {
       memcpy(r, data, sizeof(LOGFONT));
       return true;
     }
   }
 
   NOTREACHED();
   return false;
 }
 
 void ParamTraits<LOGFONT>::Log(const param_type& p, std::string* l) {
   l->append(base::StringPrintf("<LOGFONT>"));
 }
 
-void ParamTraits<MSG>::Write(Message* m, const param_type& p) {
+void ParamTraits<MSG>::Write(base::Pickle* m, const param_type& p) {
   m->WriteData(reinterpret_cast<const char*>(&p), sizeof(MSG));
 }
 
-bool ParamTraits<MSG>::Read(const Message* m,
+bool ParamTraits<MSG>::Read(const base::Pickle* m,
                             base::PickleIterator* iter,
                             param_type* r) {
   const char *data;
   int data_size = 0;
   bool result = iter->ReadData(&data, &data_size);
   if (result && data_size == sizeof(MSG)) {
     memcpy(r, data, sizeof(MSG));
   } else {
     result = false;
     NOTREACHED();
   }
 
   return result;
 }
 
 void ParamTraits<MSG>::Log(const param_type& p, std::string* l) {
   l->append("<MSG>");
 }
 
 #endif  // OS_WIN
 
 }  // namespace IPC