loading switch_tab start search after current

Change the code so that we start the search for a matching tab after the
current tab instead of on the current tab.

This allows us to cycle between tabs that have the same URL.

Change-Id: I83376ff419db4265989548be90862b7e8bee9e58
Reviewed-on: https://chromium-review.googlesource.com/c/crossbench/+/6656089
Reviewed-by: Kameron Lutes <[email protected]>
Commit-Queue: Charles Dick <[email protected]>

Author: cwd-goog

crossbench/browsers/chromium_based/webdriver.py

@@ -250,7 +250,8 @@ def switch_tab(
       if tab_index is not None:
         handles = [driver.window_handles[tab_index]]
       else:
-        handles = driver.window_handles[i:] + driver.window_handles[:i]
+        # Start searching with the tab after the current tab.
+        handles = driver.window_handles[i + 1:] + driver.window_handles[:i + 1]
 
       for handle in handles:
         driver.switch_to.window(handle)