Mark SharedMemoryProcessTest.Tasks as flaky on Mac.

base/shared_memory_unittest.cc

Index: base/shared_memory_unittest.cc
diff --git a/base/shared_memory_unittest.cc b/base/shared_memory_unittest.cc
index f7036e8205635c6e197cf45a52cc8a4bafcc02a5..f646158eee8d8af6befec51457b23f395b6f73f3 100644
--- a/base/shared_memory_unittest.cc
+++ b/base/shared_memory_unittest.cc
@@ -371,7 +371,13 @@ class SharedMemoryProcessTest : public base::MultiProcessTest {
 const char* const SharedMemoryProcessTest::s_test_name_ = "MPMem";
 
 
-TEST_F(SharedMemoryProcessTest, Tasks) {
+#if defined(OS_MACOSX)
+#define MAYBE_Tasks FLAKY_Tasks
+#else
+#define MAYBE_Tasks Tasks
+#endif
+
+TEST_F(SharedMemoryProcessTest, MAYBE_Tasks) {
   SharedMemoryProcessTest::CleanUp();
 
   base::ProcessHandle handles[kNumTasks];