Version 1.12.2

Commit patch https://codereview.chromium.org/1420443002/
diff --git a/tools/VERSION b/tools/VERSION
index b2ec447..9256f87 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -26,6 +26,6 @@
 CHANNEL stable
 MAJOR 1
 MINOR 12
-PATCH 1
+PATCH 2
 PRERELEASE 0
 PRERELEASE_PATCH 0