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This CL converts RapporRecorderPtr and
RapporRecorderRequest to new Mojo types.

It uses Remote or PendingRemote and
PendingReceiver instead of RapporRecorderPtr
and RapporRecorderRequest.

Bug: 955171
Change-Id: I6658a0b3087af0646e6b7654fd4db0987a4e3cb6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1810446Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Julie Kim <jkim@igalia.com>
Cr-Commit-Position: refs/heads/master@{#698750}