[DevTools] Add a definite article 'the' to Application>Service Worker

Add 'the' to the tool tip for checkbox 'Bypass for network', to ensure
style consistency.

This is a followup of CL1405975.

Change-Id: I394f72a6466bb55b537d5f94eb1abdfc98621332
Bug: 920193
Reviewed-on: https://chromium-review.googlesource.com/c/1407637
Reviewed-by: Erik Luo <luoe@chromium.org>
Commit-Queue: Haihong Li (Harley) <hhli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622269}
1 file changed