[tracing] Don't use dot-based path expansion in TracedValue
The current implementation of TracedValue still relies on a conversion
to base::Value in the last stage to create the JSON.
The current implementation can degenerate the dictionary if key names
contain dots, thanks to the default implementation of base::Value.
This fixes the issue by using the *WithoutPathExpansion methods.
BUG=532838
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1354493003
Cr-Commit-Position: refs/heads/master@{#349640}
CrOS-Libchrome-Original-Commit: 986ddd21b0329b365b5cf95e71b0d46a797ec00a
2 files changed