Disable flaky OmniboxTest#testShrinkingAutocompleteTextResults

Bug: 910868
Change-Id: Ib509c2b325855dd88758dee8a91203f12c640b97
TBR: tedchoc@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/1358455Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613081}

chrome/android/javatests/src/org/chromium/chrome/browser/omnibox/OmniboxTest.java

@@ -31,6 +31,7 @@ import org.junit.runner.RunWith;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.EnormousTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.MinAndroidSdkLevel;
@@ -461,6 +462,7 @@ public class OmniboxTest {
     @MediumTest
     @Feature({"Omnibox"})
     @RetryOnFailure
+    @DisabledTest
     public void testShrinkingAutocompleteTextResults()
             throws InterruptedException, ExecutionException {
         Map<String, List<SuggestionsResult>> suggestionsMap = buildSuggestionMap(