Refactor Pickle Read methods to use higher performance PickleIterator.

chrome/common/automation_messages.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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 "chrome/common/common_param_traits.h"
 #include "content/public/common/webkit_param_traits.h"
 #include "ui/base/models/menu_model.h"
 
 // Get basic type definitions.
 #define IPC_MESSAGE_IMPL
 #include "chrome/common/automation_messages.h"
@@ skipping 54 matching lines @@
     WriteParam(m, p.items[i].enabled);
 
     if (p.items[i].type == static_cast<int>(ui::MenuModel::TYPE_SUBMENU)) {
       Write(m, *p.items[i].submenu);
     }
   }
 }
 
 // static
 bool ParamTraits<ContextMenuModel>::Read(const Message* m,
-                                         void** iter,
+                                         PickleIterator* iter,
                                          param_type* p) {
   size_t item_count = 0;
   if (!ReadParam(m, iter, &item_count))
     return false;
 
   p->items.reserve(item_count);
   for (size_t i = 0; i < item_count; ++i) {
     ContextMenuModel::Item item;
     if (!ReadParam(m, iter, &item.type))
       return false;
@@ skipping 42 matching lines @@
     if (item.type == ui::MenuModel::TYPE_SUBMENU) {
       l->append(", ");
       Log(*item.submenu, l);
     }
     l->append(")");
   }
   l->append(")");
 }
 
 }  // namespace IPC