Add compile assertions to enforce the sizes of all structs and enums in the C...

ppapi/tests/all_c_includes.h

Index: ppapi/tests/all_c_includes.h
===================================================================
--- ppapi/tests/all_c_includes.h	(revision 67010)
+++ ppapi/tests/all_c_includes.h	(working copy)
@@ -1,4 +1,3 @@
-
 /* Copyright (c) 2010 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.
@@ -6,6 +5,9 @@
  * This test simply includes all the C headers to ensure they compile with a C
  * compiler.  If it compiles, it passes.
  */
+#ifndef PPAPI_TESTS_ALL_C_INCLUDES_H_
+#define PPAPI_TESTS_ALL_C_INCLUDES_H_
+
 #include "ppapi/c/dev/deprecated_bool.h"
 #include "ppapi/c/dev/pp_cursor_type_dev.h"
 #include "ppapi/c/dev/pp_file_info_dev.h"
@@ -73,3 +75,5 @@
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 
+#endif  /* PPAPI_TESTS_ALL_C_INCLUDES_H_ */
+