Read Chrome build ID and store it in leak reports

components/metrics/leak_detector/BUILD.gn

 # Copyright 2016 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("//mojo/public/tools/bindings/mojom.gni")
 
 if (is_chromeos) {
   # GYP version: components/metrics.gypi:metrics_leak_detector
   source_set("leak_detector") {
     sources = [
       "call_stack_manager.cc",
       "call_stack_manager.h",
       "call_stack_table.cc",
       "call_stack_table.h",
       "custom_allocator.cc",
       "custom_allocator.h",
+      "gnu_build_id_reader.cc",
+      "gnu_build_id_reader.h",
       "leak_analyzer.cc",
       "leak_analyzer.h",
       "leak_detector.cc",
       "leak_detector.h",
       "leak_detector_impl.cc",
       "leak_detector_impl.h",
       "leak_detector_value_type.cc",
       "leak_detector_value_type.h",
       "protobuf_to_mojo_converter.cc",
       "protobuf_to_mojo_converter.h",
@@ skipping 29 matching lines @@
     deps = [
       ":interfaces",
       ":leak_detector",
       "//base",
       "//components/metrics/proto:proto",
       "//content/test:test_support",
       "//testing/gtest",
     ]
   }
 }