Remove deprecated methods from Pickle.

ipc/param_traits_read_macros.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_PARAM_TRAITS_READ_MACROS_H_
 #define IPC_PARAM_TRAITS_READ_MACROS_H_
 
 // Null out all the macros that need nulling.
 #include "ipc/ipc_message_null_macros.h"
 
@@ skipping 17 matching lines @@
     return
 #define IPC_STRUCT_TRAITS_MEMBER(name) ReadParam(m, iter, &p->name) &&
 #define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Read(m, iter, p) &&
 #define IPC_STRUCT_TRAITS_END() 1; }
 
 #undef IPC_ENUM_TRAITS_VALIDATE
 #define IPC_ENUM_TRAITS_VALIDATE(enum_name, validation_expression)    \
   bool ParamTraits<enum_name>:: \
       Read(const Message* m, PickleIterator* iter, param_type* p) { \
     int value; \
-    if (!m->ReadInt(iter, &value)) \
+    if (!iter->ReadInt(&value)) \
       return false; \
     if (!(validation_expression)) \
       return false; \
     *p = static_cast<param_type>(value); \
     return true; \
   }
 
 #endif  // IPC_PARAM_TRAITS_READ_MACROS_H_