Add InputEvent and EventPacket types for batched input delivery

content/common/input/input_event.cc

Index: content/common/input/input_event.cc
diff --git a/content/common/input/input_event.cc b/content/common/input/input_event.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4e663f9566dd713047da416e32ff3e0f6d491f07
--- /dev/null
+++ b/content/common/input/input_event.cc
@@ -0,0 +1,16 @@
+// 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.
+
+#include "content/common/input/input_event.h"
+
+namespace content {
+
+InputEvent::InputEvent(Type type, AckType ack_type, int64 id)
+    : type(type),
+      ack_type(ack_type),
+      id(id) {}
+
+InputEvent::~InputEvent() {}
+
+}  // namespace content