Disable some flaky tests.

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

 // Copyright (c) 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.
 
 // Browser test for basic Chrome OS file manager functionality:
 //  - The file list is updated when a file is added externally to the Downloads
 //    folder.
 //  - Selecting a file and copy-pasting it with the keyboard copies the file.
 //  - Selecting a file and pressing delete deletes it.
 
@@ skipping 1105 matching lines @@
                       TestParameter(NOT_IN_GUEST_MODE,
                                     "openFileDialogOnDrive"),
                       TestParameter(IN_INCOGNITO,
                                     "openFileDialogOnDownloads"),
                       TestParameter(IN_INCOGNITO,
                                     "openFileDialogOnDrive"),
                       TestParameter(NOT_IN_GUEST_MODE,
                                     "unloadFileDialog")));
 
 // Slow tests are disabled on debug build. http://crbug.com/327719
-#if !defined(NDEBUG)
+// Disabled under MSAN as well. http://crbug.com/468980.
+#if !defined(NDEBUG) || defined(MEMORY_SANITIZER)
 #define MAYBE_CopyBetweenWindows DISABLED_CopyBetweenWindows
 #else
 #define MAYBE_CopyBetweenWindows CopyBetweenWindows
 #endif
 WRAPPED_INSTANTIATE_TEST_CASE_P(
     MAYBE_CopyBetweenWindows,
     FileManagerBrowserTest,
     ::testing::Values(
         TestParameter(NOT_IN_GUEST_MODE, "copyBetweenWindowsLocalToDrive"),
         TestParameter(NOT_IN_GUEST_MODE, "copyBetweenWindowsLocalToUsb"),
@@ skipping 94 matching lines @@
 
   const char* GetTestCaseNameParam() const override {
     return test_case_name_.c_str();
   }
 
   std::string test_case_name_;
 };
 
 // Slow tests are disabled on debug build. http://crbug.com/327719
 // Fails on official build. http://crbug.com/429294
-#if !defined(NDEBUG) || defined(OFFICIAL_BUILD)
+// Disabled under MSAN as well. http://crbug.com/468982.
+#if !defined(NDEBUG) || defined(OFFICIAL_BUILD) || defined(MEMORY_SANITIZER)
 #define MAYBE_PRE_BasicDownloads DISABLED_PRE_BasicDownloads
 #define MAYBE_BasicDownloads DISABLED_BasicDownloads
 #else
 #define MAYBE_PRE_BasicDownloads PRE_BasicDownloads
 #define MAYBE_BasicDownloads BasicDownloads
 #endif
 IN_PROC_BROWSER_TEST_F(MultiProfileFileManagerBrowserTest,
                        MAYBE_PRE_BasicDownloads) {
   AddAllUsers();
 }
@@ skipping 218 matching lines @@
   StartTest();
 }
 
 IN_PROC_BROWSER_TEST_F(VideoPlayerBrowserTest, OpenSingleVideoOnDrive) {
   set_test_case_name("openSingleVideoOnDrive");
   StartTest();
 }
 
 }  // namespace
 }  // namespace file_manager