Roll third_party/inspector_protocol to 4ad35c45aca9834b67ec2cb152c816ea1b7ceb48

This roll includes:
  - [inspector_protocol] Introduce protocol::Serializable [1]
  - [inspector_protocol] Fixed domain_json["has_exports"] flag for exported domains [2]

[1] https://codereview.chromium.org/2526603002
[2] https://codereview.chromium.org/2515343005

BUG=chromium:350797
R=dgozman@chromium.org
TBR=oshima@chromium.org

Review-Url: https://codereview.chromium.org/2522583002
Cr-Commit-Position: refs/heads/master@{#434199}
33 files changed