[Offline indicator v2] Deflake Start surface test

Bug: 1105309
Change-Id: I5650cc61dd8e6c2b76bb0ee79d9ab2b2de97cb6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2303041Reviewed-by: Ganggui Tang <gogerald@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Sinan Sahin <sinansahin@google.com>
Cr-Commit-Position: refs/heads/master@{#789508}

chrome/android/javatests/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorTest.java

@@ -182,6 +182,12 @@ public class StatusIndicatorTest {
 
         // The status indicator will be immediately visible.
         onView(withId(R.id.status_indicator)).check(matches(withEffectiveVisibility(VISIBLE)));
+
+        CriteriaHelper.pollUiThread(() -> {
+            Criteria.checkThat(mBrowserControlsStateProvider.getTopControlsMinHeightOffset(),
+                    Matchers.is(mStatusIndicatorContainer.getHeight()));
+        });
+
         onView(withId(R.id.control_container))
                 .check(matches(withTopMargin(mStatusIndicatorContainer.getHeight())));
         onView(withId(org.chromium.chrome.start_surface.R.id.secondary_tasks_surface_view))
@@ -202,6 +208,11 @@ public class StatusIndicatorTest {
 
         TestThreadUtils.runOnUiThreadBlocking(() -> mStatusIndicatorCoordinator.hide());
 
+        CriteriaHelper.pollUiThread(() -> {
+            Criteria.checkThat(
+                    mBrowserControlsStateProvider.getTopControlsMinHeightOffset(), Matchers.is(0));
+        });
+
         onView(withId(R.id.status_indicator)).check(matches(withEffectiveVisibility(GONE)));
         onView(withId(R.id.control_container)).check(matches(withTopMargin(0)));
         onView(withId(org.chromium.chrome.start_surface.R.id.secondary_tasks_surface_view))