Exclude lots of tests from memory bots

chrome/browser/extensions/api/braille_display_private/braille_display_private_apitest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef USE_BRLAPI
 #error This test requires brlapi.
 #endif
 
 #include <stddef.h>
 
@@ skipping 300 matching lines @@
       lock_state_observer.Wait();
     ASSERT_FALSE(tester->IsLocked());
   }
 
  protected:
   void DisableAccessibilityManagerBraille() override {
     // Let the accessibility manager behave as usual for these tests.
   }
 };
 
+// Flakily times out on ChromeOS MSAN bots. See https://crbug.com/592893.
+#if defined(MEMORY_SANITIZER)
+#define MAYBE_KeyEventOnLockScreen DISABLED_KeyEventOnLockScreen
+#else
+#define MAYBE_KeyEventOnLockScreen KeyEventOnLockScreen
+#endif
 IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateAPIUserTest,
-                       KeyEventOnLockScreen) {
+                       MAYBE_KeyEventOnLockScreen) {
   scoped_ptr<ScreenLockerTester> tester(ScreenLocker::GetTester());
   // Log in.
   user_manager::UserManager::Get()->UserLoggedIn(
       AccountId::FromUserEmail(kTestUserName), kTestUserName, true);
   user_manager::UserManager::Get()->SessionStarted();
   Profile* profile = ProfileManager::GetActiveUserProfile();
   ASSERT_FALSE(
       ProfileHelper::GetSigninProfile()->IsSameProfile(profile))
       << ProfileHelper::GetSigninProfile()->GetDebugName() << " vs. "
       << profile->GetDebugName();
@@ skipping 26 matching lines @@
   DismissLockScreen(tester.get());
   signin_api.OnBrailleKeyEvent(key_event);
   user_api.OnBrailleKeyEvent(key_event);
   EXPECT_EQ(1, signin_delegate->GetEventCount());
   EXPECT_EQ(2, user_delegate->GetEventCount());
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions