Add InputEvent and EventPacket types for batched input delivery

content/common/input/event_packet_ack.h

Index: content/common/input/event_packet_ack.h
diff --git a/content/common/input/event_packet_ack.h b/content/common/input/event_packet_ack.h
new file mode 100644
index 0000000000000000000000000000000000000000..508e937137925c5b30022f2d86fe33704e04b22f
--- /dev/null
+++ b/content/common/input/event_packet_ack.h
@@ -0,0 +1,35 @@
+// Copyright (c) 2013 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 CONTENT_COMMON_INPUT_EVENT_PACKET_ACK_H_
+#define CONTENT_COMMON_INPUT_EVENT_PACKET_ACK_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "content/common/content_export.h"
+#include "content/common/input/input_event_disposition.h"
+
+namespace content {
+
+class EventPacket;
+
+class CONTENT_EXPORT EventPacketAck {
+ public:
+  typedef std::vector<InputEventDisposition> Dispositions;
+
+  EventPacketAck(int64 id, const Dispositions& dispositions);
+  EventPacketAck();
+  ~EventPacketAck();
+
+  // The id of the packet being ack'ed.
+  int64 id;
+
+  // The dispositions of events for the packet being ack'ed.
+  Dispositions dispositions;
+};
+
+}  // namespace content
+
+#endif // CONTENT_COMMON_INPUT_EVENT_PACKET_H_