Disable flaky tests.

Bug: 789931, 789947
TBR: zea, qinmin
Change-Id: I340a4dd9b3b1176d8bafe3a21f52e26522c41ebe
Reviewed-on: https://chromium-review.googlesource.com/811990
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#522240}

chrome/android/javatests/src/org/chromium/chrome/browser/download/DownloadManagerServiceTest.java

@@ -24,6 +24,7 @@ import org.chromium.base.ThreadUtils;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.base.test.BaseJUnit4ClassRunner;
 import org.chromium.base.test.util.AdvancedMockContext;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.download.DownloadInfo.Builder;
@@ -498,8 +499,9 @@ public class DownloadManagerServiceTest {
     }
 
     @Test
-    @MediumTest
-    @Feature({"Download"})
+    //@MediumTest
+    //@Feature({"Download"})
+    @DisabledTest // crbug.com/789931
     public void testInterruptedUnmeteredDownloadCannotAutoResumeOnMeteredNetwork()
             throws InterruptedException {
         MockDownloadNotifier notifier = new MockDownloadNotifier(getTestContext());

chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/GmsCoreSyncListenerTest.java

@@ -16,8 +16,8 @@ import org.junit.runner.RunWith;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
-import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.test.ChromeActivityTestRule;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
@@ -35,7 +35,7 @@ import java.util.concurrent.Callable;
         ChromeSwitches.DISABLE_FIRST_RUN_EXPERIENCE,
         ChromeActivityTestRule.DISABLE_NETWORK_PREDICTION_FLAG,
 })
-@RetryOnFailure // crbug.com/637448
+@DisabledTest // crbug.com/789947
 public class GmsCoreSyncListenerTest {
     @Rule
     public SyncTestRule mSyncTestRule = new SyncTestRule();