[Passwords] Enable SaveUpdate bubble unit test HasTitleAndTwoButtons

As per the linked bug, tests in
PasswordSaveUpdateWithAccountStoreViewTest falkily timeout.
They have been however doing well for like 2 weeks before getting flaky.

I am considering enabling one of the simple test again to see if the
problem still exists or not.

Change-Id: I1452e7ee7e70ec7b3d63289527b4ae2134d4e81a
Bug: 1054629
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2073881Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#744981}

chrome/browser/ui/views/passwords/password_save_update_with_account_store_view_unittest.cc

@@ -135,9 +135,7 @@ void PasswordSaveUpdateWithAccountStoreViewTest::CreateViewAndShow() {
   views::BubbleDialogDelegateView::CreateBubble(view_)->Show();
 }
 
-// TODO(crbug.com/1054629): Flakily times out on all platforms.
-TEST_F(PasswordSaveUpdateWithAccountStoreViewTest,
-       DISABLED_HasTitleAndTwoButtons) {
+TEST_F(PasswordSaveUpdateWithAccountStoreViewTest, HasTitleAndTwoButtons) {
   CreateViewAndShow();
   EXPECT_TRUE(view()->ShouldShowWindowTitle());
   EXPECT_TRUE(view()->GetOkButton());