Disable FullscreenElementInABAAndExitViaEscapeKey test on Windows due to flakes

chrome/browser/site_per_process_interactive_browsertest.cc

Index: chrome/browser/site_per_process_interactive_browsertest.cc
diff --git a/chrome/browser/site_per_process_interactive_browsertest.cc b/chrome/browser/site_per_process_interactive_browsertest.cc
index da191b4d974b0b5bfc7616e78b4b838003709477..fb4865c4d3cad8dc1228b99acb351b36ca8671ab 100644
--- a/chrome/browser/site_per_process_interactive_browsertest.cc
+++ b/chrome/browser/site_per_process_interactive_browsertest.cc
@@ -588,8 +588,14 @@ void SitePerProcessInteractiveBrowserTest::FullscreenElementInABA(
   EXPECT_EQ("none", GetFullscreenElementId(grandchild));
 }
 
+// Flaky on Windows: https://crbug.com/647311
+#if defined(OS_WIN)
+#define MAYBE_FullscreenElementInABAAndExitViaEscapeKey DISABLED_FullscreenElementInABAAndExitViaEscapeKey
+#else
+#define MAYBE_FullscreenElementInABAAndExitViaEscapeKey FullscreenElementInABAAndExitViaEscapeKey
+#endif
 IN_PROC_BROWSER_TEST_F(SitePerProcessInteractiveBrowserTest,
-                       FullscreenElementInABAAndExitViaEscapeKey) {
+                       MAYBE_FullscreenElementInABAAndExitViaEscapeKey) {
   FullscreenElementInABA(FullscreenExitMethod::ESC_PRESS);
 }