[Sherriff] Disable flaky SelectToSpeakOptionsTest.RendersContent

Bug: 1235944
Change-Id: I3548a803376cc426542744f9b9bdd8b86ccef49b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3070920
Reviewed-by: Swapnil Gupta <swapnilgupta@google.com>
Reviewed-by: Omar Morsi <omorsi@google.com>
Commit-Queue: Jit Yao Yap <jityao@google.com>
Owners-Override: Jit Yao Yap <jityao@google.com>
Cr-Commit-Position: refs/heads/master@{#908398}

chrome/browser/resources/chromeos/accessibility/select_to_speak/select_to_speak_options_test.js

@@ -9,7 +9,8 @@ GEN_INCLUDE(['select_to_speak_e2e_test_base.js']);
  */
 SelectToSpeakOptionsTest = class extends SelectToSpeakE2ETest {};
 
-TEST_F('SelectToSpeakOptionsTest', 'RendersContent', function() {
+// Flaky. See crbug.com/1235944.
+TEST_F('SelectToSpeakOptionsTest', 'DISABLED_RendersContent', function() {
   this.runWithLoadedOptionsPage(root => {
     // Sanity check the page renders correctly by looking for an item close or
     // at the very end of the page.