Add dummy DEPS file for jsoncpp.

This will allow clients that use the subtree mirror to specify a
revision for jsoncpp without needing nested DEPS.

Also cleans up the gitignore for the subtree mirror so gclient
revert will work properly.

Bug: 1017514
Change-Id: I3832b7fadc0fa9ddcc5dad700690b09e374a4f67
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1877455
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#709541}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: d76b932a05adf3a8ecafab1139304dcfb3721ae3
2 files changed
tree: 8e7976732b5465263c579672db68d8d078b7a629
  1. .gitignore
  2. BUILD.gn
  3. DEPS
  4. LICENSE
  5. OWNERS
  6. README.chromium
  7. fuzzers/
  8. generated/