Add more crash keys to diagnose Android WebView renderer kills.

Because actual URLs and origins are not reported in WebView crash keys,
this CL adds the following boolean crash keys:
* is_data_url: Relevant for LoadDataWithBaseURL.
* is_srcdoc_url: Might be blocked if loaded in main frame.
* is_loaddatawithbaseurl_navrequest: For this navigation specifically.
* is_loaddatawithbaseurl_samedoc: If current document used it.
* is_process_locked: Required to be false for the exemption to apply.

Bug: 326250356
Change-Id: I5ba096a47174ff339eaa5b0e2ed3af2a79c79f60
Low-Coverage-Reason: HARD_TO_TEST There are no known repro steps.
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5570691
Commit-Queue: Richard (Torne) Coles <torne@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Auto-Submit: Charlie Reis <creis@chromium.org>
Reviewed-by: Richard (Torne) Coles <torne@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1306779}