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This CL adds UseCounters for activation of third party frames,
as well as for general access to these frames, and third parties
that had frames that were both activated and accessed.

Change-Id: Ib366336a2553c5625341147e82875c4265b42225
Bug: 1115657
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2402196
Commit-Queue: Eric Robinson <ericrobinson@chromium.org>
Reviewed-by: Charlie Harrison <csharrison@chromium.org>
Reviewed-by: Yao Xiao <yaoxia@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813760}