Disable flaky tests on Mac: PlatformChannelPairPosixTest.SendReceiveFDs and PipeCount/MultiprocessM…

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

Index: third_party/mojo/src/mojo/edk/system/multiprocess_message_pipe_unittest.cc
diff --git a/third_party/mojo/src/mojo/edk/system/multiprocess_message_pipe_unittest.cc b/third_party/mojo/src/mojo/edk/system/multiprocess_message_pipe_unittest.cc
index dcdc500fd184a464f73f6db292ea30ced05bb485..cf5049e566a4ea82af207681c1803b0de8b083a2 100644
--- a/third_party/mojo/src/mojo/edk/system/multiprocess_message_pipe_unittest.cc
+++ b/third_party/mojo/src/mojo/edk/system/multiprocess_message_pipe_unittest.cc
@@ -448,7 +448,12 @@ class MultiprocessMessagePipeTestWithPipeCount
     : public test::MultiprocessMessagePipeTestBase,
       public testing::WithParamInterface<size_t> {};
 
+#if defined(OS_MACOSX)
+// http://crbug.com/488260
+TEST_P(MultiprocessMessagePipeTestWithPipeCount, DISABLED_PlatformHandlePassing) {
+#else
 TEST_P(MultiprocessMessagePipeTestWithPipeCount, PlatformHandlePassing) {
+#endif
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());