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IDS_OPTIONS_ADVANCED_SECTION_TITLE_PRIVACY is used in multiple tests,
so this CL creates a matcher in chrome_matchers.h.

Bug: 738363
Change-Id: If0ab68ce67397aa0a0819055fa147aef8f046984
Reviewed-on: https://chromium-review.googlesource.com/563473Reviewed-by: Louis Romero <lpromero@chromium.org>
Reviewed-by: Mike Baxley <baxley@chromium.org>
Commit-Queue: Louis Romero <lpromero@chromium.org>
Cr-Commit-Position: refs/heads/master@{#485389}