[ios] Add thegreenfrog as owner to infobars and overscroll_actions

Change-Id: Iff472835b3cd4a444d6fd5c25adc431cc71f4cf7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2462887
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Auto-Submit: Chris Lu <thegreenfrog@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816243}

ios/chrome/browser/ui/infobars/OWNERS

-rohitrao@chromium.org
 sczs@chromium.org
+thegreenfrog@chromium.org
 
 # TEAM: ios-directory-owners@chromium.org
 # OS: iOS

ios/chrome/browser/ui/overscroll_actions/OWNERS

+thegreenfrog@chromium.org
+
+# TEAM: ios-directory-owners@chromium.org
+# OS: iOS