Disable some org.chromium.chrome.browser.TabsTest tests

Disabled testToolbarSwipeNextThenPrevTab and
testToolbarSwipeNextThenPrevTabIncognito for flakiness.
See bug for details.

TBR=mdjones@chromium.org

Bug: 882003
Change-Id: Ic78f41566c1abce0feb4010196fcf1270fba11a6
Reviewed-on: https://chromium-review.googlesource.com/1218722Reviewed-by: Dominic Battré <battre@chromium.org>
Commit-Queue: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590228}

chrome/android/javatests/src/org/chromium/chrome/browser/TabsTest.java

@@ -1567,6 +1567,7 @@ public class TabsTest {
     @Feature({"Android-TabSwitcher"})
     @Restriction(RESTRICTION_TYPE_NON_LOW_END_DEVICE)
     @RetryOnFailure
+    @DisabledTest(message = "crbug.com/882003")
     public void testToolbarSwipeNextThenPrevTab() throws InterruptedException, TimeoutException {
         ChromeTabUtils.fullyLoadUrlInNewTab(InstrumentationRegistry.getInstrumentation(),
                 mActivityTestRule.getActivity(), ContentUrlConstants.ABOUT_BLANK_URL, false);
@@ -1588,6 +1589,7 @@ public class TabsTest {
     @Feature({"Android-TabSwitcher"})
     @Restriction(RESTRICTION_TYPE_NON_LOW_END_DEVICE)
     @RetryOnFailure
+    @DisabledTest(message = "crbug.com/882003")
     public void testToolbarSwipeNextThenPrevTabIncognito()
             throws InterruptedException, TimeoutException {
         ChromeTabUtils.fullyLoadUrlInNewTab(InstrumentationRegistry.getInstrumentation(),