Disable ActionBoxTest.BookmarkAPageTest, which is flakily failing.

chrome/browser/ui/omnibox/action_box_browsertest.cc

Index: chrome/browser/ui/omnibox/action_box_browsertest.cc
diff --git a/chrome/browser/ui/omnibox/action_box_browsertest.cc b/chrome/browser/ui/omnibox/action_box_browsertest.cc
index e2310f6c62c85089cefb3cda29e901298538a0c6..567ef56642d5a504350c74503009f017cdcf0ff0 100644
--- a/chrome/browser/ui/omnibox/action_box_browsertest.cc
+++ b/chrome/browser/ui/omnibox/action_box_browsertest.cc
@@ -75,7 +75,8 @@ class ActionBoxTest : public InProcessBrowserTest,
 
 // Test if Bookmark star appears after bookmarking a page in the action box, and
 // disappears after unbookmarking a page.
-IN_PROC_BROWSER_TEST_F(ActionBoxTest, BookmarkAPageTest) {
+// Flakily fails: http://crbug.com/163733
+IN_PROC_BROWSER_TEST_F(ActionBoxTest, DISABLED_BookmarkAPageTest) {
   LocationBarTesting* loc_bar =
       browser()->window()->GetLocationBar()->GetLocationBarForTesting();