Disable flaky tests on Mac: PlatformChannelPairPosixTest.SendReceiveFDs and...

Disable flaky tests on Mac: PlatformChannelPairPosixTest.SendReceiveFDs and PipeCount/MultiprocessMessagePipeTestWithPipeCount.PlatformHandlePassing/2

TBR=viettrungluu@chromium.org
BUG=488260,488258

Review URL: https://codereview.chromium.org/1126293008

Cr-Commit-Position: refs/heads/master@{#330013}

third_party/mojo/src/mojo/edk/embedder/platform_channel_pair_posix_unittest.cc

@@ -127,7 +127,13 @@ TEST_F(PlatformChannelPairPosixTest, SendReceiveData) {
   }
 }
 
-TEST_F(PlatformChannelPairPosixTest, SendReceiveFDs) {
+#if defined(OS_MACOSX)
+// http://crbug.com/488258
+#define MAYBE_SendReceiveFDs DISABLED_SendReceiveFDs
+#else
+#define MAYBE_SendReceiveFDs SendReceiveFDs
+#endif
+TEST_F(PlatformChannelPairPosixTest, MAYBE_SendReceiveFDs) {
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 

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());