Add InputEvent and EventPacket types for batched input delivery

content/common/input/input_param_traits_macros.h

Index: content/common/input/input_param_traits_macros.h
diff --git a/content/common/input/input_param_traits_macros.h b/content/common/input/input_param_traits_macros.h
new file mode 100644
index 0000000000000000000000000000000000000000..7d2172affae1512212b2a4ea9442232b7b4ba8ab
--- /dev/null
+++ b/content/common/input/input_param_traits_macros.h
@@ -0,0 +1,42 @@
+// 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.
+
+// Singly or Multiply-included shared traits file depending on circumstances.
+// This allows the use of IPC serialization macros in more than one IPC message
+// file.
+#ifndef CONTENT_COMMON_INPUT_INPUT_PARAM_TRAITS_MACROS_H_
+#define CONTENT_COMMON_INPUT_INPUT_PARAM_TRAITS_MACROS_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+#include "content/common/input/event_packet.h"
+#include "content/common/input/event_packet_ack.h"
+#include "content/common/input/input_event.h"
+#include "content/common/input/input_event_state.h"
+#include "content/common/input/generic_event.h"
+#include "ipc/ipc_message_macros.h"
+#include "ipc/ipc_message_utils.h"
+
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT CONTENT_EXPORT
+
+IPC_ENUM_TRAITS(content::InputEventState)
+IPC_ENUM_TRAITS(content::InputEvent::Type)
+
+IPC_STRUCT_TRAITS_BEGIN(content::EventPacketAck)
+  IPC_STRUCT_TRAITS_MEMBER(id)
+  IPC_STRUCT_TRAITS_MEMBER(event_states)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(content::InputEvent)
+  IPC_STRUCT_TRAITS_MEMBER(id)
+  IPC_STRUCT_TRAITS_MEMBER(type)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(content::GenericEvent)
+  IPC_STRUCT_TRAITS_PARENT(content::InputEvent)
+  IPC_STRUCT_TRAITS_MEMBER(message)
+IPC_STRUCT_TRAITS_END()
+
+#endif  // CONTENT_COMMON_INPUT_INPUT_PARAM_TRAITS_MACROS_H_