Orderfile: Force library re-link by touching a source file.

With partitioned libraries enabled, lib(mono)chrome.so is not the direct
result of a linker operation. Instead the linker creates a combined
library, and then libchrome.so (along with feature libraries) are
extracted to separate .so files in a subsequent step. The result is that
deleting libchrome.so won't necessarily cause the linker to re-run.

To be safe, touch a source file instead. This ensures that the entire
link process runs again, independent of the details.

Bug: None
Change-Id: Iceb6c4838bfbbc98154898c7e9ad8ed8277c63c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1688958
Reviewed-by: Matthew Cary (CET) <mattcary@chromium.org>
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#675007}

• tools/cygprofile/orderfile_generator_backend.py[diff]