Disable TestWithKeyboardMicChannel for android clang builds

Disabling this test will make a bot go green. See bug for details.

BUG=470499

Review URL: https://codereview.chromium.org/1031943004

Cr-Commit-Position: refs/heads/master@{#322144}

content/renderer/media/media_stream_audio_processor_unittest.cc

@@ -492,7 +492,14 @@ TEST_F(MediaStreamAudioProcessorTest, TestStereoAudio) {
   audio_processor = NULL;
 }
 
-TEST_F(MediaStreamAudioProcessorTest, TestWithKeyboardMicChannel) {
+// Disabled on android clang builds due to crbug.com/470499
+#if defined(__clang__) && defined(OS_ANDROID)
+#define MAYBE_TestWithKeyboardMicChannel DISABLED_TestWithKeyboardMicChannel
+#else
+#define MAYBE_TestWithKeyboardMicChannel TestWithKeyboardMicChannel
+#endif
+
+TEST_F(MediaStreamAudioProcessorTest, MAYBE_TestWithKeyboardMicChannel) {
   MockMediaConstraintFactory constraint_factory;
   constraint_factory.AddMandatory(
       MediaAudioConstraints::kGoogExperimentalNoiseSuppression, true);