Disable flaky ExtensionApiTest.Bookmarks on Win.

chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc

Index: chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc
diff --git a/chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc b/chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc
index 31d41f3d063e7f60c710a2f1035028449fa02512..33f707a540ffeebcca2697286d2519f24b49cd42 100644
--- a/chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc
+++ b/chrome/browser/extensions/api/bookmarks/bookmark_apitest.cc
@@ -14,7 +14,13 @@
 #include "components/bookmarks/common/bookmark_pref_names.h"
 #include "components/bookmarks/test/bookmark_test_helpers.h"
 
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, Bookmarks) {
+// Flaky on Win only. http://crbug.com/383452
+#if defined(OS_WIN)
+#define MAYBE_Bookmarks DISABLED_Bookmarks
+#else
+#define MAYBE_Bookmarks Bookmarks
+#endif
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_Bookmarks) {
   // Add test managed bookmarks to verify that the bookmarks API can read them
   // and can't modify them.
   Profile* profile = browser()->profile();