Revert of Move gn _run target generation into test(). (patchset #1 id:1 of https://codereview.chromium.org/1653003006/ )

Reason for revert:
Broke angle_unittests_run, which doesn't follow the template:

https://build.chromium.org/p/chromium.gpu.fyi/builders/GPU%20Linux%20Builder/builds/53646/steps/compile/logs/stdio

Original issue's description:
> Move gn _run target generation into test().
>
> TBR=brettw@chromium.org
> BUG=
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/6b1b03783b81ea27bb521c02aa84b74f06d6f71a
> Cr-Commit-Position: refs/heads/master@{#373232}

TBR=phosek@chromium.org,brettw@chromium.org,jbudorick@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1664653003

Cr-Commit-Position: refs/heads/master@{#373257}

1 files changed, 1 insertions, 1 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 61cd4dd..d1c5875 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -462,8 +462,8 @@ group("both_gn_and_gyp") {
         # TODO(dpranke): Figure out what platforms should actually have this.
         deps += [
           "//components/nacl/loader:helper_nonsfi",
+          "//components/nacl/loader:helper_nonsfi_unittests",
           "//components/nacl/loader:nacl_helper",
-          "//components/nacl/loader:nacl_helper_nonsfi_unittests",
         ]
       }
     }