Disable all the tests that are flaking more than 5% on Linux builders.

components/bookmarks/browser/bookmark_utils_unittest.cc

Index: components/bookmarks/browser/bookmark_utils_unittest.cc
diff --git a/components/bookmarks/browser/bookmark_utils_unittest.cc b/components/bookmarks/browser/bookmark_utils_unittest.cc
index fd3d47249058ef657704fdd907e533e9e0b8a30a..46cdc1e3fcbdeee9e22f8c4e283e523588362bc1 100644
--- a/components/bookmarks/browser/bookmark_utils_unittest.cc
+++ b/components/bookmarks/browser/bookmark_utils_unittest.cc
@@ -285,7 +285,13 @@ TEST_F(BookmarkUtilsTest, CopyPaste) {
   EXPECT_FALSE(CanPasteFromClipboard(model.get(), model->bookmark_bar_node()));
 }
 
-TEST_F(BookmarkUtilsTest, CutToClipboard) {
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+// http://crbug.com/396472
+#define MAYBE_CutToClipboard DISABLED_CutToClipboard
+#else
+#define MAYBE_CutToClipboard CutToClipboard
+#endif
+TEST_F(BookmarkUtilsTest, MAYBE_CutToClipboard) {
   test::TestBookmarkClient client;
   scoped_ptr<BookmarkModel> model(client.CreateModel(false));
   model->AddObserver(this);