Add option to export tracing events to ETW.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index f6bb6b7adb7945d83a18f33f94dd086dfa5e3b68..2c99b109394f11d8a1834ba2e73ec05af87f4d59 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -155,6 +155,7 @@ shared_library("main_dll") {
     output_name = "chrome"
 
     sources = [
+      "$root_gen_dir/base/trace_event/etw_manifest/chrome_events_win.rc",
       "//base/win/dllmain.cc",
       "app/chrome_command_ids.h",
       "app/chrome_dll.rc",
@@ -172,6 +173,7 @@ shared_library("main_dll") {
       # On Windows, link the dependencies (libraries) that make up actual
       # Chromium functionality into this .dll.
       ":chrome_version_resources",
+      "//base/trace_event/etw_manifest:chrome_events_win",
       "//chrome/app/theme:chrome_unscaled_resources",
       "//chrome_elf",
       "//content/app/resources",
@@ -180,6 +182,7 @@ shared_library("main_dll") {
       "//third_party/wtl",
       "//ui/views",
     ]
+
     if (enable_configuration_policy) {
       deps += [ "//components/policy" ]
     }