Disable flaky android test

testTopToolbar_WithGTS_WithBottomToolbar_Home_Search_Tab_Switcher is
flaky on kitkat:
https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyqQELEgVGbGFrZSKdAWNocm9taXVtQGNocm9tZV9wdWJsaWNfdGVzdF9hcGtAb3JnLmNocm9taXVtLmNocm9tZS5icm93c2VyLnRvb2xiYXIudG9wLkFkYXB0aXZlVG9vbGJhclRlc3QjdGVzdFRvcFRvb2xiYXJfV2l0aEdUU19XaXRoQm90dG9tVG9vbGJhcl9Ib21lX1NlYXJjaF9UYWJfU3dpdGNoZXIM

TBR=lazzzis@google.com

Bug: 1046748
Change-Id: I769ec9e7908877a8bfa56bd562794d373235606f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2028757Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736554}

chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/top/AdaptiveToolbarTest.java

@@ -36,6 +36,7 @@ import org.junit.runner.RunWith;
 
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.DisableIf;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.ChromeTabbedActivity;
@@ -133,6 +134,7 @@ public class AdaptiveToolbarTest {
             sdk_is_less_than = Build.VERSION_CODES.LOLLIPOP)
     @CommandLineFlags.Add({"enable-features=" + ChromeFeatureList.TAB_GRID_LAYOUT_ANDROID +
             "<Study", "force-fieldtrials=Study/Group", NO_NEW_TAB_VARIATION_PARAMS})
+    @DisabledTest(message = "crbug.com/1046748")
     public void testTopToolbar_WithGTS_WithBottomToolbar_Home_Search_Tab_Switcher_IncognitoDisabled() {
         // clang-format on
         IncognitoUtils.setEnabledForTesting(false);