This will accommodate moving third_party/mini_chromium around.
The default location is unchanged for now.
There are GN variables that may need to be updated when Fuchsia's source
re-organizes its layout:
* mini_chromium_source_parent : this contains a BUILD.gn with groups and
encloses the mini_chromium_source_root. This is controlled by the
structure of the project that depends on this project.
* _mini_chromium_source_root : this is what is normally checked out from
git, the upstream source directory
* mini_chromium_import_root : points inside source_root to make GN files
accessible.
This first step breaks out case logic for "if (crashpad_is_in_fuchsia)"
even if the value is unchanged for now. This will faciliate a smaller
change when Fuchsia re-structures third_party sources.
Change-Id: I09e5362f4be8fdb440e3891422881b1053052341
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3062424
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
d5d78c1469