Read Chrome build ID and store it in leak reports

components/metrics/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.
 
 declare_args() {
   # Overrides os name in uma metrics log to "Blimp".
   metrics_use_blimp = false
 }
 
 # These are only used by the blimp team, which has entirely migrated to gn,
@@ skipping 120 matching lines @@
 if (is_chromeos) {
   # GYP version: components/metrics.gypi:metrics_leak_detector
   static_library("leak_detector") {
     sources = [
       "leak_detector/call_stack_manager.cc",
       "leak_detector/call_stack_manager.h",
       "leak_detector/call_stack_table.cc",
       "leak_detector/call_stack_table.h",
       "leak_detector/custom_allocator.cc",
       "leak_detector/custom_allocator.h",
+      "leak_detector/gnu_build_id_reader.cc",
+      "leak_detector/gnu_build_id_reader.h",
       "leak_detector/leak_analyzer.cc",
       "leak_detector/leak_analyzer.h",
       "leak_detector/leak_detector.cc",
       "leak_detector/leak_detector.h",
       "leak_detector/leak_detector_impl.cc",
       "leak_detector/leak_detector_impl.h",
       "leak_detector/leak_detector_value_type.cc",
       "leak_detector/leak_detector_value_type.h",
       "leak_detector/ranked_set.cc",
       "leak_detector/ranked_set.h",
@@ skipping 216 matching lines @@
 
   if (is_linux) {
     sources += [ "serialization/serialization_utils_unittest.cc" ]
     deps += [ ":serialization" ]
   }
 
   if (is_chromeos) {
     deps += [ ":leak_detector_unit_tests" ]
   }
 }