Bound the impact of system instability on chrome instability.

components/browser_watcher/BUILD.gn

 # Copyright 2015 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("//third_party/protobuf/proto_library.gni")
 
 if (is_win) {
   proto_library("stability_report_proto") {
     sources = [
       "stability_report.proto",
@@ skipping 25 matching lines @@
     ]
     deps = [
       ":postmortem_report_collector",
       ":stability",
       "//base",
       "//components/metrics",
       "//third_party/crashpad/crashpad/client",
     ]
   }
 
-  static_library("postmortem_minidump_writer") {
-    # TODO(manzagop): remove this lib once Crashpad writes the minidumps.
+  static_library("postmortem_report_collector") {
     sources = [
       "postmortem_minidump_writer.h",
       "postmortem_minidump_writer_win.cc",
+      "postmortem_report_collector.cc",
+      "postmortem_report_collector.h",
+      "system_session_analyzer_win.cc",
+      "system_session_analyzer_win.h",
     ]
     deps = [
       ":stability_data",
       ":stability_report_proto",
       "//base",
+      "//components/variations",
       "//third_party/crashpad/crashpad/client",
       "//third_party/crashpad/crashpad/minidump",
       "//third_party/crashpad/crashpad/util",
     ]
-  }
-
-  static_library("postmortem_report_collector") {
-    sources = [
-      "postmortem_report_collector.cc",
-      "postmortem_report_collector.h",
-    ]
-    deps = [
-      ":postmortem_minidump_writer",
-      ":stability_data",
-      ":stability_report_proto",
-      "//base",
-      "//components/variations",
-      "//third_party/crashpad/crashpad/client",
-      "//third_party/crashpad/crashpad/util",
-    ]
+    libs = [ "wevtapi.lib" ]
+    ldflags = [ "/DELAYLOAD:wevtapi.dll" ]  # Only used after unclean shutdowns.
   }
 }
 
 static_library("stability") {
   sources = [
     "features.cc",
     "features.h",
     "stability_debugging.cc",
     "stability_debugging.h",
   ]
@@ skipping 10 matching lines @@
 }
 
 if (is_win) {
   source_set("unit_tests") {
     testonly = true
     sources = [
       "endsession_watcher_window_win_unittest.cc",
       "exit_code_watcher_win_unittest.cc",
       "postmortem_minidump_writer_win_unittest.cc",
       "postmortem_report_collector_unittest.cc",
+      "system_session_analyzer_win_unittest.cc",
       "watcher_client_win_unittest.cc",
       "watcher_metrics_provider_win_unittest.cc",
       "window_hang_monitor_win_unittest.cc",
     ]
     configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
     deps = [
       ":browser_watcher",
       ":browser_watcher_client",
-      ":postmortem_minidump_writer",
       ":postmortem_report_collector",
       ":stability_data",
       ":stability_report_proto",
       "//base",
       "//base/test:test_support",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/crashpad/crashpad/client",
 
       # TODO(manzagop): remove this lib once Crashpad writes the minidumps.
       "//third_party/crashpad/crashpad/compat",
       "//third_party/crashpad/crashpad/minidump",
       "//third_party/crashpad/crashpad/snapshot",
       "//third_party/crashpad/crashpad/util",
     ]
   }
 
   executable("dump_postmortem") {
     sources = [
       "dump_postmortem_minidump_main_win.cc",
     ]
     deps = [
       ":stability_report_proto",
       "//base",
     ]
   }
+
+  executable("fetch_system_session_events") {
+    sources = [
+      "fetch_system_session_events_main_win.cc",
+    ]
+    deps = [
+      ":postmortem_report_collector",
+      "//base",
+    ]
+  }
 }