Speculatively re-enable ActiveDirectoryLogin* tests

After changes in issue 1058022 the tests are much less likely to
time out on dgb/*san bots.

If tests will flake again, please disable them indvidually rather
then by reverting this CL.

Bug: 1034481, 1031545
Bug: 1058022
Change-Id: I9c736f865d6f3cd5fedd675f5b480f6e0a458d8c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2152371Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Denis Kuznetsov [CET] <antrim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760030}

chrome/browser/chromeos/login/active_directory_login_browsertest.cc

@@ -101,13 +101,7 @@ class ActiveDirectoryLoginAutocompleteTest : public ActiveDirectoryLoginTest {
 }  // namespace
 
 // Test successful Active Directory login.
-// TODO(https://crbug.com/1034481) Flaky on MSAN bots.
-#if defined(MEMORY_SANITIZER)
-#define MAYBE_LoginSuccess DISABLED_LoginSuccess
-#else
-#define MAYBE_LoginSuccess LoginSuccess
-#endif
-IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest, MAYBE_LoginSuccess) {
+IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest, LoginSuccess) {
   OobeBaseTest::WaitForSigninScreen();
   ASSERT_TRUE(InstallAttributes::Get()->IsActiveDirectoryManaged());
   ad_login_.TestNoError();
@@ -119,13 +113,7 @@ IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest, MAYBE_LoginSuccess) {
 
 // Tests that the Kerberos SSO environment variables are set correctly after
 // an Active Directory log in.
-// TODO(https://crbug.com/1034481) Flaky on MSAN bots.
-#if defined(MEMORY_SANITIZER)
-#define MAYBE_KerberosVarsCopied DISABLED_KerberosVarsCopied
-#else
-#define MAYBE_KerberosVarsCopied KerberosVarsCopied
-#endif
-IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest, MAYBE_KerberosVarsCopied) {
+IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest, KerberosVarsCopied) {
   OobeBaseTest::WaitForSigninScreen();
   ad_login_.TestNoError();
   ad_login_.TestDomainHidden();
@@ -256,14 +244,7 @@ IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginTest,
 }
 
 // Tests that autocomplete works. Submits username without domain.
-// TODO(1031545): Flaky under MSAN.
-#if defined(MEMORY_SANITIZER)
-#define MAYBE_LoginSuccess DISABLED_LoginSuccess
-#else
-#define MAYBE_LoginSuccess LoginSuccess
-#endif
-IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginAutocompleteTest,
-                       MAYBE_LoginSuccess) {
+IN_PROC_BROWSER_TEST_F(ActiveDirectoryLoginAutocompleteTest, LoginSuccess) {
   OobeBaseTest::WaitForSigninScreen();
   ASSERT_TRUE(InstallAttributes::Get()->IsActiveDirectoryManaged());
   ad_login_.TestNoError();