From 2f87713d4074afe4970ae55256100b50819d5315 Mon Sep 17 00:00:00 2001
From: liyuqian <liyuqian@google.com>
Date: Tue, 5 Feb 2019 11:17:21 -0800
Subject: [PATCH] Revert "Disable the persistent cache (#6835)" (#7689)

This reverts commit 093b2fea8ac09fb1e9e0d712dbdecc0a09f2c1ad.

For https://github.com/flutter/flutter/issues/24058, We now only get a
"Program linking failed" error message on Windows Android simulators
without crahsing. Skia seems to have handled the linking failure in
https://skia-review.googlesource.com/c/skia/+/180372 by rebuilding the
program.
---
 shell/common/persistent_cache.cc | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/shell/common/persistent_cache.cc b/shell/common/persistent_cache.cc
index 95d2b6f9ecf..c3f6ebf0250 100644
--- a/shell/common/persistent_cache.cc
+++ b/shell/common/persistent_cache.cc
@@ -40,8 +40,16 @@ PersistentCache* PersistentCache::GetCacheForProcess() {
   return gPersistentCache.get();
 }
 
-PersistentCache::PersistentCache() {
-  // TODO(chinmaygarde): Reenable caching, avoiding the windows crasher.
+PersistentCache::PersistentCache()
+    : cache_directory_(std::make_shared<fml::UniqueFD>(
+          CreateDirectory(fml::paths::GetCachesDirectory(),
+                          {
+                              "flutter_engine",                  //
+                              blink::GetFlutterEngineVersion(),  //
+                              "skia",                            //
+                              blink::GetSkiaVersion()            //
+                          },
+                          fml::FilePermission::kReadWrite))) {
   if (!IsValid()) {
     FML_LOG(WARNING) << "Could not acquire the persistent cache directory. "
                         "Caching of GPU resources on disk is disabled.";