From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <sattard@slack-corp.com>
Date: Tue, 23 Apr 2019 09:51:43 -0700
Subject: build_add_electron_tracing_category.patch

All TRACE events in Chromium use a static assert to ensure that the
categories in use are known / declared.  This patch is required for us
to introduce a new Electron category for Electron-specific tracing.

diff --git a/base/trace_event/builtin_categories.h b/base/trace_event/builtin_categories.h
index 45c518185da68419e0f482acba359f02c2152f88..a0e35f118f0b1f767b41676d651a575e8b5fddb4 100644
--- a/base/trace_event/builtin_categories.h
+++ b/base/trace_event/builtin_categories.h
@@ -91,6 +91,7 @@ PERFETTO_DEFINE_CATEGORIES_IN_NAMESPACE_WITH_ATTRS(
     perfetto::Category("drm"),
     perfetto::Category("drmcursor"),
     perfetto::Category("dwrite"),
+    perfetto::Category("electron"),
     perfetto::Category("evdev"),
     perfetto::Category("event"),
     perfetto::Category("exo"),