Don't create a new profile when cleaning up stale ephemeral profiles.

chrome/browser/ui/app_list/test/fake_profile_store.cc

Index: chrome/browser/ui/app_list/test/fake_profile_store.cc
diff --git a/chrome/browser/ui/app_list/test/fake_profile_store.cc b/chrome/browser/ui/app_list/test/fake_profile_store.cc
index 641940f32be5e33d3d8ed35d48c25f1bcf333538..7966171f0078874e420fb26a220f1010142060ee 100644
--- a/chrome/browser/ui/app_list/test/fake_profile_store.cc
+++ b/chrome/browser/ui/app_list/test/fake_profile_store.cc
@@ -6,8 +6,10 @@
 
 #include "chrome/browser/profiles/profile.h"
 
-FakeProfileStore::FakeProfileStore(const base::FilePath& user_data_dir)
-    : user_data_dir_(user_data_dir) {
+FakeProfileStore::FakeProfileStore(const base::FilePath& user_data_dir,
+                                   const std::string& last_used_profile)
+    : user_data_dir_(user_data_dir),
+      last_used_profile_name_(last_used_profile) {
 }
 
 FakeProfileStore::~FakeProfileStore() {
@@ -59,6 +61,10 @@ base::FilePath FakeProfileStore::GetUserDataDir() {
   return user_data_dir_;
 }
 
+std::string FakeProfileStore::GetLastUsedProfileName() {
+  return last_used_profile_name_;
+}
+
 bool FakeProfileStore::IsProfileSupervised(const base::FilePath& path) {
   return false;
 }