Make login screen apps enabled by default

chrome/browser/extensions/extension_startup_browsertest.cc

Index: chrome/browser/extensions/extension_startup_browsertest.cc
diff --git a/chrome/browser/extensions/extension_startup_browsertest.cc b/chrome/browser/extensions/extension_startup_browsertest.cc
index 8ecfb4ab10bff04b0f5cd581ae6fd404bb70fb77..3fa5642eb256e0cdf0747f0c72cd202d3feb5ff4 100644
--- a/chrome/browser/extensions/extension_startup_browsertest.cc
+++ b/chrome/browser/extensions/extension_startup_browsertest.cc
@@ -273,20 +273,9 @@ IN_PROC_BROWSER_TEST_F(ExtensionsLoadTest, Test) {
 
 #if defined(OS_CHROMEOS)
 
-class ExtensionsLoadTestWithLoginScreenApps : public ExtensionsLoadTest {
- protected:
-  void SetUpCommandLine(base::CommandLine* command_line) override {
-    ExtensionsLoadTest::SetUpCommandLine(command_line);
-    // TODO(emaxx): Remove this test fixture class once the
-    // EnableLoginScreenApps command line flag becomes on by default.
-    // crbug.com/576464
-    command_line->AppendSwitch(switches::kEnableLoginScreenApps);
-  }
-};
-
 // Flaky test crbug.com/716727
-IN_PROC_BROWSER_TEST_F(ExtensionsLoadTestWithLoginScreenApps,
-                       DISABLED_CommandLineExtensionsDontLoad) {
+IN_PROC_BROWSER_TEST_F(ExtensionsLoadTest,
+                       DISABLED_SigninProfileCommandLineExtensionsDontLoad) {
   // The --load-extension command line flag should not be applied to the sign-in
   // profile.
   EXPECT_EQ(0, GetNonComponentEnabledExtensionCount(