Disable failing test AudioRecorderTest.BasicRecordAndStop because of Mac failures.

components/audio_modem/audio_recorder_unittest.cc

Index: components/audio_modem/audio_recorder_unittest.cc
diff --git a/components/audio_modem/audio_recorder_unittest.cc b/components/audio_modem/audio_recorder_unittest.cc
index 0dd089ae469218aa9f9fccf83011eab7034d3e6e..598a5c3a9fba9aa8f33e386f8d1c36f8011d0e1f 100644
--- a/components/audio_modem/audio_recorder_unittest.cc
+++ b/components/audio_modem/audio_recorder_unittest.cc
@@ -196,7 +196,15 @@ class AudioRecorderTest : public testing::Test {
   content::TestBrowserThreadBundle thread_bundle_;
 };
 
-TEST_F(AudioRecorderTest, BasicRecordAndStop) {
+
+// http://crbug.com/463854
+#if defined(OS_MACOSX)
+#define MAYBE_BasicRecordAndStop DISABLED_BasicRecordAndStop
+#else
+#define MAYBE_BasicRecordAndStop BasicRecordAndStop
+#endif
+
+TEST_F(AudioRecorderTest, MAYBE_BasicRecordAndStop) {
   CreateSimpleRecorder();
 
   recorder_->Record();