Change FileArg syntax

This changes the syntax from:
 @(filepath:key0:key1)
to:
 @FileArg(filepath:key0:key1)

This should make it much easier for someone who encounters this syntax
to figure out what it is (currently a `git grep FileArg` returns only
results about/using this feature).

Also changes it to use a simple regex search instead of adhoc stuff.

BUG=359249

Review URL: https://codereview.chromium.org/377803003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283484 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 2d4a5ab6aa498f2a371441b25a9905af1a594d71
1 file changed
tree: 1a20814c8107f968f7c131290e5bd73433f4f8e4
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/