Marking BrowserFocusTest.InterstitialFocus as Flaky.

BUG=96695
Review URL: http://codereview.chromium.org/7890033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@101288 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/browser_focus_uitest.cc b/chrome/browser/browser_focus_uitest.cc
index 68eeb54..8482822 100644
--- a/chrome/browser/browser_focus_uitest.cc
+++ b/chrome/browser/browser_focus_uitest.cc
@@ -700,7 +700,7 @@
 
 // Focus stays on page with interstitials.
 // http://crbug.com/81451
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) || defined(OS_WIN)
 IN_PROC_BROWSER_TEST_F(BrowserFocusTest, FLAKY_InterstitialFocus) {
 #else
 IN_PROC_BROWSER_TEST_F(BrowserFocusTest, InterstitialFocus) {