Add estevenson to android_infra watchlist.

Change-Id: I5fb983c8f31a1b548b4776588e46f49bf5d0aa80
Reviewed-on: https://chromium-review.googlesource.com/1112062
Reviewed-by: agrieve <agrieve@chromium.org>
Commit-Queue: Eric Stevenson <estevenson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569746}

WATCHLISTS

@@ -1675,6 +1675,7 @@
     'android_crazy_linker': ['johnmaguire+watch@google.com'],
     'android_infobars': ['dfalcantara+watch@chromium.org'],
     'android_infra': ['agrieve+watch@chromium.org',
+                      'estevenson+watch@chromium.org',
                       'jbudorick+watch@chromium.org'],
     'android_item_chooser_dialogs': ['juncai+watch@chromium.org',
                                      'ortuno+watch@chromium.org'],