[Sheriff] Disable flaky PhotoPickerDialogTest

TBR=finnur@chromium.org

Bug: 1123848
Change-Id: I14546bae16d5265cbd710cc81d58f49052067945
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2387201Reviewed-by: Lijin Shen <lazzzis@google.com>
Commit-Queue: Lijin Shen <lazzzis@google.com>
Cr-Commit-Position: refs/heads/master@{#803574}

components/browser_ui/photo_picker/android/java/src/org/chromium/components/browser_ui/photo_picker/PhotoPickerDialogTest.java

@@ -29,6 +29,7 @@ import org.chromium.base.MathUtils;
 import org.chromium.base.test.BaseJUnit4ClassRunner;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.DisableIf;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.MinAndroidSdkLevel;
 import org.chromium.base.test.util.UrlUtils;
@@ -56,6 +57,7 @@ import java.util.concurrent.TimeUnit;
 /**
  * Tests for the PhotoPickerDialog class.
  */
+@DisabledTest(message = "https://crbug.com/1123848")
 @RunWith(BaseJUnit4ClassRunner.class)
 public class PhotoPickerDialogTest extends DummyUiActivityTestCase
         implements PhotoPickerListener, SelectionObserver<PickerBitmap>,