[MemSheriff] Disable two tests which are flaky by design.

third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc

Index: third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc
diff --git a/third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc b/third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc
index b8e57e91b938bdce88f50bad6f3cc06f681dfb9c..7d5edcba695746142b99365beb6382103d73428b 100644
--- a/third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc
+++ b/third_party/mojo/src/mojo/edk/system/simple_dispatcher_unittest.cc
@@ -325,13 +325,8 @@ TEST(SimpleDispatcherTest, BasicClosed) {
   // Don't need to remove waiters from closed dispatchers.
 }
 
-#if defined(OS_WIN)
 // http://crbug.com/396393
-#define MAYBE_BasicThreaded DISABLED_BasicThreaded
-#else
-#define MAYBE_BasicThreaded BasicThreaded
-#endif
-TEST(SimpleDispatcherTest, MAYBE_BasicThreaded) {
+TEST(SimpleDispatcherTest, DISABLED_BasicThreaded) {
   test::Stopwatch stopwatch;
   bool did_wait;
   MojoResult result;