Disable MediaDialogViewBrowserTest.LiveCaption

Bug: 1163666
Change-Id: Ie677edd59696139abab312bc80a0c033e35b68f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2613541
Auto-Submit: Collin Baker <collinbaker@chromium.org>
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842335}

chrome/browser/ui/views/global_media_controls/media_dialog_view_interactive_browsertest.cc

@@ -882,7 +882,13 @@ IN_PROC_BROWSER_TEST_F(MediaDialogViewBrowserTest,
   EXPECT_TRUE(IsPlayingSessionDisplayedFirst());
 }
 
-IN_PROC_BROWSER_TEST_F(MediaDialogViewBrowserTest, LiveCaption) {
+// Flaky on Mac: crbug.com/1163666
+#if defined(OS_MAC)
+#define MAYBE_LiveCaption DISABLED_LiveCaption
+#else
+#define MAYBE_LiveCaption LiveCaption
+#endif  // defined(OS_MAC)
+IN_PROC_BROWSER_TEST_F(MediaDialogViewBrowserTest, MAYBE_LiveCaption) {
   // Open a tab and play media.
   OpenTestURL();
   StartPlayback();