Exempt default apps from external-extension alerts.

chrome/browser/extensions/external_policy_extension_loader_unittest.cc

Index: chrome/browser/extensions/external_policy_extension_loader_unittest.cc
diff --git a/chrome/browser/extensions/external_policy_extension_loader_unittest.cc b/chrome/browser/extensions/external_policy_extension_loader_unittest.cc
index c5fa9f5f0c99a31a152a242b586b1fc88d3e07a9..4d0d085db27bdad23e32a7e7d5703ea895349584 100644
--- a/chrome/browser/extensions/external_policy_extension_loader_unittest.cc
+++ b/chrome/browser/extensions/external_policy_extension_loader_unittest.cc
@@ -69,7 +69,8 @@ class MockExternalPolicyExtensionProviderVisitor
                                             const Version* version,
                                             const FilePath& path,
                                             Extension::Location unused,
-                                            int unused2) {
+                                            int unused2,
+                                            bool unused3) {
     ADD_FAILURE() << "There should be no external extensions from files.";
   }