Add missing file for systrace.
(cherry picked from commit 670892292899fcac00e5fd572f0d9d96acd8847e)
Change-Id: I2d823e6905e66d1ab6c9783cceb0657e904ffca7
diff --git a/build/tools.atree b/build/tools.atree
index a6aa99f..66281ba 100644
--- a/build/tools.atree
+++ b/build/tools.atree
@@ -163,6 +163,7 @@
# systrace
external/chromium-trace/systrace.py tools/systrace/systrace.py
+external/chromium-trace/config.py tools/systrace/config.py
external/chromium-trace/script.js tools/systrace/script.js
external/chromium-trace/style.css tools/systrace/style.css
external/chromium-trace/LICENSE tools/systrace/LICENSE