Roll chromium_revision 5333e14..d8f8dc8 (323410:324211)

We used to symlink the .gn file from Chromium but it's now
replaced by our own copy (needed for recent GN changes in
https://codereview.chromium.org/988563002).

Relevant changes:
* src/third_party/boringssl/src: e2e1326..40acdae
* src/third_party/icu: 46be516..10834e8
* src/third_party/nss: bb4e75a..d1edb68
* src/tools/gyp: d174d75..2889664

The entries for
* src/third_party/jsoncpp/source/include
* src/third_party/jsoncpp/source/src/lib_json
are removed and replaced by:
* src/third_party/jsoncpp/source @ab1e40f
(which doesn't matter for us since we symlink third_party/jsoncpp

Details: https://chromium.googlesource.com/chromium/src/+/5333e14..d8f8dc8/DEPS

Clang version was not updated in this roll.

R=henrika@webrtc.org, pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48919004

Cr-Commit-Position: refs/heads/master@{#8959}
diff --git a/OWNERS b/OWNERS
index c08c55a..3ecf2a2 100644
--- a/OWNERS
+++ b/OWNERS
@@ -6,6 +6,7 @@
 tommi@webrtc.org
 per-file .gitignore=*
 per-file AUTHORS=*
+per-file .gn=kjellander@webrtc.org
 per-file BUILD.gn=kjellander@webrtc.org
 per-file DEPS=*
 per-file PRESUBMIT.py=kjellander@webrtc.org