Track plugin input event latency

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 98 matching lines @@
       'c/private/ppb_ext_crx_file_system_private.h',
       'c/private/ppb_find_private.h',
       '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_host_resolver_private.h',
+      'c/private/ppb_input_event_private.h',
       'c/private/ppb_instance_private.h',
       'c/private/ppb_isolated_file_system_private.h',
       'c/private/ppb_nacl_private.h',
       'c/private/ppb_net_address_private.h',
       'c/private/ppb_output_protection_private.h',
       'c/private/ppb_pdf.h',
       'c/private/ppb_platform_verification_private.h',
       'c/private/ppb_proxy_private.h',
       'c/private/ppb_testing_private.h',
       'c/private/ppb_tcp_server_socket_private.h',
@@ skipping 200 matching lines @@
       'cpp/private/flash_font_file.cc',
       'cpp/private/flash_font_file.h',
       'cpp/private/flash_fullscreen.cc',
       'cpp/private/flash_fullscreen.h',
       'cpp/private/flash_menu.cc',
       'cpp/private/flash_menu.h',
       'cpp/private/flash_message_loop.cc',
       'cpp/private/flash_message_loop.h',
       'cpp/private/host_resolver_private.cc',
       'cpp/private/host_resolver_private.h',
+      'cpp/private/input_event_private.cc',
+      'cpp/private/input_event_private.h',
       'cpp/private/instance_private.cc',
       'cpp/private/instance_private.h',
       'cpp/private/isolated_file_system_private.cc',
       'cpp/private/isolated_file_system_private.h',
       'cpp/private/net_address_private.cc',
       'cpp/private/net_address_private.h',
       'cpp/private/output_protection_private.cc',
       'cpp/private/output_protection_private.h',
       'cpp/private/pass_file_handle.cc',
       'cpp/private/pass_file_handle.h',
@@ skipping 236 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',
     ],
   },
 }