Disable TestAsNormalAndGuestUser/SpokenFeedbackTest.TouchExploreStatusTray/0

TBR=dtseng@chromium.org

Bug: 719930
Change-Id: I98bb00242238f059b7a43fc26147751fdc3e1168
Reviewed-on: https://chromium-review.googlesource.com/601908Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491971}

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

@@ -609,7 +609,8 @@ IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, DISABLED_ChromeVoxNextStickyMode) {
   }
 }
 
-IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, TouchExploreStatusTray) {
+// Flaky on Linux ChromiumOS MSan Tests. https://crbug.com/752427
+IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, DISABLED_TouchExploreStatusTray) {
   EnableChromeVox();
   SimulateTouchScreenInChromeVox();