Replace use of std container with WTF's equivalent in security_context.h

This CL replaces the use of std::vector of std containers with
Blink::WebVector in security_context.h and related codes.

Bug: 952716
Change-Id: I82ee19f4ea79ea81dd7f187a8cd618c89945dc50
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1661323
Reviewed-by: Kentaro Hara <[email protected]>
Commit-Queue: Miyoung Shin <[email protected]>
Cr-Commit-Position: refs/heads/master@{#669960}
13 files changed