Disable flaky tests on Linux

The test became flaky recently. See bug for details.

TBR=guidou@chromium.org

Bug: 986470
Change-Id: Ibab83e4393ba8e305340b21d01e2716dd4afb07c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1713366
Commit-Queue: Tina Wang <tinazwang@chromium.org>
Reviewed-by: Tina Wang <tinazwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#679803}

content/browser/webrtc/webrtc_image_capture_browsertest.cc

@@ -39,6 +39,15 @@ namespace content {
 #define MAYBE_ManipulateExposureTime ManipulateExposureTime
 #endif
 
+#if defined(OS_LINUX)
+// See crbug/986470
+#define MAYBE_GetPhotoSettings DISABLED_GetPhotoSettings
+#define MAYBE_GetTrackSettings DISABLED_GetTrackSettings
+#else
+#define MAYBE_GetPhotoSettings GetPhotoSettings
+#define MAYBE_GetTrackSettings GetTrackSettings
+#endif
+
 namespace {
 
 static const char kImageCaptureHtmlFile[] = "/media/image_capture_test.html";
@@ -177,7 +186,7 @@ IN_PROC_BROWSER_TEST_P(WebRtcImageCaptureSucceedsBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_P(WebRtcImageCaptureSucceedsBrowserTest,
-                       GetPhotoSettings) {
+                       MAYBE_GetPhotoSettings) {
   embedded_test_server()->StartAcceptingConnections();
   ASSERT_TRUE(
       RunImageCaptureTestCase("testCreateAndGetPhotoSettingsSucceeds()"));
@@ -200,7 +209,7 @@ IN_PROC_BROWSER_TEST_P(WebRtcImageCaptureSucceedsBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_P(WebRtcImageCaptureSucceedsBrowserTest,
-                       GetTrackSettings) {
+                       MAYBE_GetTrackSettings) {
   embedded_test_server()->StartAcceptingConnections();
   ASSERT_TRUE(RunImageCaptureTestCase("testCreateAndGetTrackSettings()"));
 }