[WebLayer] Attempt to fix flaky test.

Bug: 1106948
Change-Id: I87b1f29822abe681ab75b703d36c3c7da70c25f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2343346
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Auto-Submit: Mugdha Lakhani <nator@chromium.org>
Reviewed-by: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#795995}

weblayer/shell/android/shell_apk/src/org/chromium/weblayer/shell/InstrumentationActivity.java

@@ -371,11 +371,11 @@ public class InstrumentationActivity extends FragmentActivity {
             }
         });
 
-        // Will be a no-op if this tab is already the active tab.
-        mBrowser.setActiveTab(mTab);
-
         // Creates and adds a new UrlBarView to |mTopContentsContainer|.
         createUrlBarView();
+
+        // Will be a no-op if this tab is already the active tab.
+        mBrowser.setActiveTab(mTab);
     }
 
     private Fragment getOrCreateBrowserFragment() {