weblayer: enable two tests on earlier versions

The fixes were merged to earlier versions, so the min version
requirement can be updated.

BUG=none
TEST=test only changes

Change-Id: I8a0658d62a1fcfac3825f8c6b93d7ce9f714893e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2398894Reviewed-by: Evan Stade <estade@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805457}

weblayer/browser/android/javatests/src/org/chromium/weblayer/test/NavigationTest.java

@@ -838,7 +838,7 @@ public class NavigationTest {
     // This is a regression test for https://crbug.com/1121388.
     @Test
     @SmallTest
-    @MinWebLayerVersion(87)
+    @MinWebLayerVersion(85)
     public void testDestroyTabWithModalDialog() throws Exception {
         // Load a page with a form.
         InstrumentationActivity activity =
@@ -891,7 +891,7 @@ public class NavigationTest {
      */
     @Test
     @SmallTest
-    @MinWebLayerVersion(87)
+    @MinWebLayerVersion(86)
     public void testDestroyTabInNavigationFailed() throws Throwable {
         InstrumentationActivity activity = mActivityTestRule.launchShellWithUrl(null);
         CallbackHelper callbackHelper = new CallbackHelper();