Disable ChromeVoxStickyMode test under MSAN.

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

Index: chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc
diff --git a/chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc b/chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc
index e4db34684e5aae27b507c411d6f4ff7c9eadd991..574b4fa9ca277c57a238fa8541926a4d448deed7 100644
--- a/chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc
+++ b/chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc
@@ -567,6 +567,12 @@ IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, MAYBE_ChromeVoxNavigateAndSelect) {
   EXPECT_EQ("Title", speech_monitor_.GetNextUtterance());
 }
 
+#if defined(MEMORY_SANITIZER)
+// Fails under MemorySanitizer: http://crbug.com/628060
+#define MAYBE_ChromeVoxStickyMode DISABLED_ChromeVoxStickyMode
+#else
+#define MAYBE_ChromeVoxStickyMode ChromeVoxStickyMode
+#endif
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, ChromeVoxStickyMode) {
   LoadChromeVoxAndThenNavigateToURL(
       GURL("data:text/html;charset=utf-8,"