Changing the TimeDeltas in DRPPageLoadTiming to Optional

components/data_reduction_proxy/core/common/BUILD.gn

 # Copyright 2014 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.
 
 import("//chrome/version.gni")
 
 # Variables:
 #   deps: Extra dependencies.
 template("common_tmpl") {
   source_set(target_name) {
     sources = [
       "data_reduction_proxy_bypass_action_list.h",
       "data_reduction_proxy_bypass_type_list.h",
       "data_reduction_proxy_config_values.h",
       "data_reduction_proxy_event_creator.cc",
       "data_reduction_proxy_event_creator.h",
       "data_reduction_proxy_event_storage_delegate.h",
       "data_reduction_proxy_event_store.cc",
       "data_reduction_proxy_event_store.h",
       "data_reduction_proxy_headers.cc",
       "data_reduction_proxy_headers.h",
+      "data_reduction_proxy_page_load_timing.cc",
       "data_reduction_proxy_page_load_timing.h",
       "data_reduction_proxy_params.cc",
       "data_reduction_proxy_params.h",
       "data_reduction_proxy_pref_names.cc",
       "data_reduction_proxy_pref_names.h",
       "data_reduction_proxy_switches.cc",
       "data_reduction_proxy_switches.h",
       "data_reduction_proxy_util.cc",
       "data_reduction_proxy_util.h",
       "lofi_decider.h",
@@ skipping 74 matching lines @@
 }
 
 process_version("version_header") {
   template_file = "version.h.in"
   output = "$target_gen_dir/version.h"
   extra_args = [
     "-e",
     "VERSION_FULL=\"%s.%s.%s.%s\" % (MAJOR,MINOR,BUILD,PATCH)",
   ]
 }