From b285a0fd74280aa18cf89cf7f0a4d7d3ed287fb1 Mon Sep 17 00:00:00 2001
From: Jason Simmons <jason-simmons@users.noreply.github.com>
Date: Thu, 8 Oct 2020 13:53:04 -0700
Subject: [PATCH] Clear the Minikin layout cache during engine destruction
 (flutter/engine#21473)

---
 .../src/flutter/third_party/txt/src/txt/font_collection.cc   | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/engine/src/flutter/third_party/txt/src/txt/font_collection.cc b/engine/src/flutter/third_party/txt/src/txt/font_collection.cc
index 31c3ba6d25a..5f895ef41af 100644
--- a/engine/src/flutter/third_party/txt/src/txt/font_collection.cc
+++ b/engine/src/flutter/third_party/txt/src/txt/font_collection.cc
@@ -27,6 +27,7 @@
 #include "flutter/fml/logging.h"
 #include "flutter/fml/trace_event.h"
 #include "font_skia.h"
+#include "minikin/Layout.h"
 #include "txt/platform.h"
 #include "txt/text_style.h"
 
@@ -82,7 +83,9 @@ class TxtFallbackFontProvider
 
 FontCollection::FontCollection() : enable_font_fallback_(true) {}
 
-FontCollection::~FontCollection() = default;
+FontCollection::~FontCollection() {
+  minikin::Layout::purgeCaches();
+}
 
 size_t FontCollection::GetFontManagersCount() const {
   return GetFontManagerOrder().size();