Revert "Sheriff: Disable failing WebRTC browser tests"

This reverts commit 83d2ffd4.

Reason for revert: The offending CL was found, it should be reverted instead of disabling the test. (See bug.)

Original change's description:
> Sheriff: Disable failing WebRTC browser tests
> 
> TBR=alexmos@chromium.org,tommi@chromium.org
> 
> Bug: 991935
> Change-Id: Id091cd054fd2b8aad837463bef5b7c63489cf248
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1742161
> Reviewed-by: Kush Sinha <sinhak@chromium.org>
> Commit-Queue: Kush Sinha <sinhak@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#685168}

TBR=tommi@chromium.org,alexmos@chromium.org,sinhak@chromium.org

Change-Id: I8eb6e73ac918d0d726962dbe677e6fc05394a585
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 991935
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1743731Reviewed-by: Henrik Grunell <grunell@chromium.org>
Commit-Queue: Henrik Grunell <grunell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#685178}

content/browser/webrtc/webrtc_audio_debug_recordings_browsertest.cc

@@ -82,12 +82,11 @@ class WebRtcAudioDebugRecordingsBrowserTest
   ~WebRtcAudioDebugRecordingsBrowserTest() override {}
 };
 
-#if defined(OS_ANDROID) || defined(OS_LINUX) || defined(OS_MACOSX)
+#if defined(OS_ANDROID) || defined(OS_LINUX)
 // Renderer crashes under Android ASAN: https://crbug.com/408496.
 // Renderer crashes under Android: https://crbug.com/820934.
 // Failures on Android M. https://crbug.com/535728.
 // Flaky on Linux: https://crbug.com/871182
-// Failures on ASAN: https://crbug.com/991935
 #define MAYBE_CallWithAudioDebugRecordings DISABLED_CallWithAudioDebugRecordings
 #else
 #define MAYBE_CallWithAudioDebugRecordings CallWithAudioDebugRecordings
@@ -182,10 +181,9 @@ IN_PROC_BROWSER_TEST_F(WebRtcAudioDebugRecordingsBrowserTest,
 // TODO(grunell): Add test for multiple dumps when re-use of
 // MediaStreamAudioProcessor in AudioCapturer has been removed.
 
-#if defined(OS_ANDROID) || defined(OS_LINUX) || defined(OS_MACOSX)
+#if defined(OS_ANDROID)
 // Renderer crashes under Android ASAN: https://crbug.com/408496.
 // Renderer crashes under Android: https://crbug.com/820934.
-// Failures on ASAN: https://crbug.com/991935
 #define MAYBE_CallWithAudioDebugRecordingsEnabledThenDisabled \
   DISABLED_CallWithAudioDebugRecordingsEnabledThenDisabled
 #else