blink/bindings: Add memory-infra dump provider to ParkableStringManager.

Bug: 877044
Change-Id: I8bff95c4853e0ec19ddc2523191288d82a9cff90
Reviewed-on: https://chromium-review.googlesource.com/c/1422439
Commit-Queue: Benoit L <lizeb@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#624603}
7 files changed