Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/input_event_data.h

Index: ppapi/native_client/src/shared/ppapi_proxy/input_event_data.h
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/input_event_data.h	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/input_event_data.h	(revision 0)
@@ -0,0 +1,45 @@
+// Copyright 2011 The Native Client 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 NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_INPUT_EVENT_DATA_H_
+#define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_INPUT_EVENT_DATA_H_
+
+#include "native_client/src/include/nacl_macros.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_rect.h"
+#include "ppapi/c/ppb_input_event.h"
+
+namespace ppapi_proxy {
+
+// The data for a single input event.
+struct InputEventData {
+  InputEventData();
+  ~InputEventData();
+
+  PP_InputEvent_Type event_type;
+  uint32_t event_modifiers;
+  PP_TimeTicks event_time_stamp;
+
+  PP_InputEvent_MouseButton mouse_button;
+  int32_t mouse_click_count;
+  PP_Point mouse_position;
+
+  PP_FloatPoint wheel_delta;
+  PP_FloatPoint wheel_ticks;
+  PP_Bool wheel_scroll_by_page;
+
+  uint32_t key_code;
+};
+// Make sure that the size is consistent across platforms, so the alignment is
+// consistent. Note the fields above are carefully ordered to make sure it is
+// consistent. New fields may require some adjustment to keep a consistent size
+// and alignment. TODO(dmichael): This is only required because we don't pickle
+// the type. As a short-cut, we memcpy it instead. It would be cleaner to
+// pickle this struct.
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(InputEventData, 56);
+
+}  // namespace ppapi_proxy
+
+#endif  // NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_INPUT_EVENT_DATA_H_