WebUI: Disable all JS tests in MSAN, ASAN, and TSAN bots.

chrome/test/data/webui/settings/basic_page_browsertest.js

Index: chrome/test/data/webui/settings/basic_page_browsertest.js
diff --git a/chrome/test/data/webui/settings/basic_page_browsertest.js b/chrome/test/data/webui/settings/basic_page_browsertest.js
index c0a186f0822caff15d5f540f23874267b8ae5a33..28607fbce8ccae8a692e6ad9b7ce9e6622a065b6 100644
--- a/chrome/test/data/webui/settings/basic_page_browsertest.js
+++ b/chrome/test/data/webui/settings/basic_page_browsertest.js
@@ -21,10 +21,10 @@ SettingsBasicPageBrowserTest.prototype = {
   ]),
 };
 
-// Times out on debug builders and may time out on memory bots because
-// the Settings page can take several seconds to load in a Release build
-// and several times that in a Debug build. See https://crbug.com/558434.
-GEN('#if defined(MEMORY_SANITIZER) || !defined(NDEBUG)');
+// Times out on debug builders because the Settings page can take several
+// seconds to load in a Release build and several times that in a Debug build.
+// See https://crbug.com/558434.
+GEN('#if !defined(NDEBUG)');
 GEN('#define MAYBE_Load DISABLED_Load');
 GEN('#else');
 GEN('#define MAYBE_Load Load');