Refactor Pickle Read methods to use higher performance PickleIterator.

content/common/clipboard_messages.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.
 
 // Multiply-included message file, so no include guard.
 
 #include <string>
 #include <vector>
 
 #include "base/shared_memory.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "ui/base/clipboard/clipboard.h"
 
 #define IPC_MESSAGE_START ClipboardMsgStart
 
 #ifndef CONTENT_COMMON_CLIPBOARD_MESSAGES_H_
 #define CONTENT_COMMON_CLIPBOARD_MESSAGES_H_
 
 namespace IPC {
 
 template<>
 struct ParamTraits<ui::Clipboard::FormatType> {
   typedef ui::Clipboard::FormatType param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #endif  // CONTENT_COMMON_CLIPBOARD_MESSAGES_H_
 
 IPC_ENUM_TRAITS(ui::Clipboard::Buffer)
 
 // Clipboard IPC messages sent from the renderer to the browser.
@@ skipping 38 matching lines @@
                             uint32 /* image size */)
 IPC_SYNC_MESSAGE_CONTROL2_1(ClipboardHostMsg_ReadCustomData,
                             ui::Clipboard::Buffer /* buffer */,
                             string16 /* type */,
                             string16 /* result */)
 
 #if defined(OS_MACOSX)
 IPC_MESSAGE_CONTROL1(ClipboardHostMsg_FindPboardWriteStringAsync,
                      string16 /* text */)
 #endif