[Flaky] Disable WebRtc GetDisplayMediaVideoAndAudio test on Linux

The flakes are common and we have seen it on Windows and ChromeOS
already. Interestingly, it times out often on Linux Tests (dbg) [1] and
causes several retries ASan but still works on msan and rel builds. I'll
disable it Linux to calm the bots down.

[1] https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=WebRtcGetDisplayMediaBrowserTestWithPicker.GetDisplayMediaVideoAndAudio

TBR=guidou@chromium.org

Bug: 986033
Change-Id: I6dc8c8febdeede7c394475c731cf10f56a275540
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1718950
Commit-Queue: Friedrich [CET] <fhorschig@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681250}

chrome/browser/media/webrtc/webrtc_getdisplaymedia_browsertest.cc

@@ -74,6 +74,12 @@ IN_PROC_BROWSER_TEST_F(WebRtcGetDisplayMediaBrowserTestWithPicker,
 // Real desktop capture is flaky on below platforms.
 #if defined(OS_CHROMEOS) || defined(OS_WIN)
 #define MAYBE_GetDisplayMediaVideoAndAudio DISABLED_GetDisplayMediaVideoAndAudio
+// On linux debug bots, it's flaky as well.
+#elif (defined(OS_LINUX) && !defined(NDEBUG))
+#define MAYBE_GetDisplayMediaVideoAndAudio DISABLED_GetDisplayMediaVideoAndAudio
+// On linux asan bots, it's flaky as well - msan and other rel bot are fine.
+#elif (defined(OS_LINUX) && defined(ADDRESS_SANITIZER))
+#define MAYBE_GetDisplayMediaVideoAndAudio DISABLED_GetDisplayMediaVideoAndAudio
 #else
 #define MAYBE_GetDisplayMediaVideoAndAudio GetDisplayMediaVideoAndAudio
 #endif  // defined(OS_CHROMEOS) || defined(OS_WIN)