Disable OpenLocalMediaFileCastFailNoFullscreen test on MSAN

TBR=imcheng@chromium.org

Bug: 879885
Change-Id: I8228e4d06404a59d32859b70de2adbaff71279c5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2336378Reviewed-by: Tsuyoshi Horo <horo@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#794847}

chrome/test/media_router/media_router_integration_browsertest.cc

@@ -500,6 +500,14 @@ IN_PROC_BROWSER_TEST_F(MediaRouterIntegrationBrowserTest,
       web_contents->GetDelegate()->IsFullscreenForTabOrPending(web_contents));
 }
 
+// Flaky on MSan bots: http://crbug.com/879885
+#if defined(MEMORY_SANITIZER)
+#define MAYBE_OpenLocalMediaFileCastFailNoFullscreen \
+  DISABLED_OpenLocalMediaFileCastFailNoFullscreen
+#else
+#define MAYBE_OpenLocalMediaFileCastFailNoFullscreen \
+  OpenLocalMediaFileCastFailNoFullscreen
+#endif
 // Tests that failed route creation of local file does not enter fullscreen.
 IN_PROC_BROWSER_TEST_F(MediaRouterIntegrationBrowserTest,
                        OpenLocalMediaFileCastFailNoFullscreen) {