ExtensionsServiceBackend::GarbageCollectionExtensions() makes a local copy of install_directory_

chrome/browser/extensions/extensions_service_unittest.cc

Index: chrome/browser/extensions/extensions_service_unittest.cc
diff --git a/chrome/browser/extensions/extensions_service_unittest.cc b/chrome/browser/extensions/extensions_service_unittest.cc
index 3b75dccabe95ed6bde34115240656a44e90718d2..ac0bd979adcf37132d38b568006b16facc2da942 100644
--- a/chrome/browser/extensions/extensions_service_unittest.cc
+++ b/chrome/browser/extensions/extensions_service_unittest.cc
@@ -1227,10 +1227,6 @@ TEST_F(ExtensionsServiceTest, ExternalInstallRegistry) {
 
 #endif
 
-// TODO(rafaelw): Re-enable on mac. This broke with:
-// http://codereview.chromium.org/140018
-#if !defined(OS_MACOSX)
-
 TEST_F(ExtensionsServiceTest, ExternalInstallPref) {
   InitializeEmptyExtensionsService();
   // Verify that starting with no providers loads no extensions.
@@ -1344,8 +1340,6 @@ TEST_F(ExtensionsServiceTest, ExternalInstallPref) {
               std::string::npos);
 }
 
-#endif  // !defined(OS_MACOSX)
-
 TEST_F(ExtensionsServiceTest, ExternalPrefProvider) {
   InitializeEmptyExtensionsService();
   std::string json_data =