Check that the PNaCl cache hash is truly derived from the bitcode content.

ppapi/ppapi_sources.gypi

 # 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.
 
 {
   'variables': {
     'c_source_files': [
       'c/pp_array_output.h',
       'c/pp_bool.h',
       'c/pp_completion_callback.h',
@@ skipping 88 matching lines @@
       'c/private/ppb_flash.h',
       'c/private/ppb_flash_clipboard.h',
       'c/private/ppb_flash_file.h',
       'c/private/ppb_flash_font_file.h',
       'c/private/ppb_flash_fullscreen.h',
       'c/private/ppb_flash_menu.h',
       'c/private/ppb_flash_message_loop.h',
       'c/private/ppb_gpu_blacklist_private.h',
       'c/private/ppb_host_resolver_private.h',
       'c/private/ppb_instance_private.h',
+      'c/private/ppb_nacl_hash_private.h',
       'c/private/ppb_nacl_private.h',
       'c/private/ppb_net_address_private.h',
       'c/private/ppb_pdf.h',
       'c/private/ppb_proxy_private.h',
       'c/private/ppp_instance_private.h',
       'c/private/ppb_network_list_private.h',
       'c/private/ppb_network_monitor_private.h',
       'c/private/ppb_tcp_server_socket_private.h',
       'c/private/ppb_tcp_socket_private.h',
       'c/private/ppb_udp_socket_private.h',
@@ skipping 407 matching lines @@
       'tests/test_x509_certificate_private.h',
 
       # Deprecated test cases.
       'tests/test_instance_deprecated.cc',
       'tests/test_instance_deprecated.h',
       'tests/test_var_deprecated.cc',
       'tests/test_var_deprecated.h',
     ],
   },
 }