tree bc576498bd095a40eac451be576a7dc2abc4e43f
parent a99322a31662caaab0d5755c8a1ee18de231724a
author Hidehiko Abe <hidehiko@chromium.org> 1534944465 +0900
committer chrome-bot <chrome-bot@chromium.org> 1535718225 -0700

Use base::ValueReferenceAdapter to prepare libchrome uprev.

The coming libchrome uprevs contain ListValue::iterator signature changes.
CL:1184947 is introducing a class to allow graceful uprev,
and this CL uses it.

BUG=b:37434548
TEST=Trybot.
CQ-DEPEND=CL:1184947

Change-Id: I6e0eb212f36fb9ea637370a154f9daf1008772f2
Reviewed-on: https://chromium-review.googlesource.com/1184948
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>