This PR is the run of `gn format` on all `gn` files. This is a
mechanical change done with:
```sh
git ls-files -- "*.gn" | xargs gn format
git ls-files -- "*.gni" | xargs gn format
```
This change has been motivated primarily by an improvement to the
formatters privided by `gn` correcting cases of redundant target naming,
i.e cases where `//foo:foo` is used, and should just be `//foo`.
For this particular `gn` change, see:
https://chromium.googlesource.com/chromium/src/+/c822490a82cdb6ad479159683a92858f7c6f0a58
Resolves https://github.com/brave/brave-browser/issues/48161
Modernising all namespaces in brave to use nested concat namespace
declarations.
This change is part of a large effort to modernise the brave codebase
across the board with `clang-tidy`, in order to allow future use of
`clang-duty`during code reviews. The idea is to apply a few modernisers
across the codebase in order to have less noise when trying to use
clang-tidy with some sort of autmoation.
Claudio DeSouza