[Sheriff] Disable DeclarativeNetRequestLazyAPItest.DynamicRules on MSAN

Seems due to crrev.com/c/2500441. See linked bug for details.

Bug: 1167158
Change-Id: I266c816d846fe6b90c65b5d77c9a4f65714c01b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633362Reviewed-by: Anatoliy Potapchuk <apotapchuk@chromium.org>
Reviewed-by: David Bertoni <dbertoni@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844108}

chrome/browser/extensions/api/declarative_net_request/declarative_net_request_apitest.cc

@@ -9,6 +9,7 @@
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/threading/thread_restrictions.h"
+#include "build/build_config.h"
 #include "components/version_info/version_info.h"
 #include "content/public/test/browser_test.h"
 #include "extensions/common/features/feature_channel.h"
@@ -73,7 +74,13 @@ INSTANTIATE_TEST_SUITE_P(ServiceWorker,
                          DeclarativeNetRequestLazyAPItest,
                          ::testing::Values(ContextType::kServiceWorker));
 
-IN_PROC_BROWSER_TEST_P(DeclarativeNetRequestLazyAPItest, DynamicRules) {
+// Flaky on MSAN: https://crbug.com/1167168
+#if defined(MEMORY_SANITIZER)
+#define MAYBE_DynamicRules DISABLED_DynamicRules
+#else
+#define MAYBE_DynamicRules DynamicRules
+#endif
+IN_PROC_BROWSER_TEST_P(DeclarativeNetRequestLazyAPItest, MAYBE_DynamicRules) {
   ASSERT_TRUE(RunTest("dynamic_rules")) << message_;
 }