Revert of Move gn _run target generation into test().

extensions/shell/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//extensions/shell/app_shell.gni")
 
 # Technically, this directory should not depend on files from src/chrome, but
 # that's where the VERSION file is. This  should probably all be moved to
 # src/build.
 import("//chrome/version.gni")
@@ skipping 127 matching lines @@
       # TODO(GYP) bug 546894: Fix GN and toolchains to handle spaces here.
       #output_name = "App Shell"
       # TODO(GYP): Mac bundling. See also content_shell which this is basically
       # a copy-paste of.
       deps += [ ":app_shell_framework" ]
       # TODO(GYP): Mac app_shell_helper stuff.
     }
   }
 }
 
+# TODO(GYP): Delete this after we've converted everything to GN.
+# The _run targets exist only for compatibility w/ GYP.
+group("app_shell_unittests_run") {
+  testonly = true
+  deps = [
+    ":app_shell_unittests",
+  ]
+}
+
 test("app_shell_unittests") {
   sources = rebase_path(app_shell_gypi_values.app_shell_unittests_sources,
                         ".",
                         "//extensions/shell")
 
   data = [
     "//extensions/test/data/",
     "$root_out_dir/extensions_shell_and_test.pak",
 
     #"$root_out_dir/natives_blob.bin", # move to gin
@@ skipping 60 matching lines @@
     testonly = true
     sources = [
       "app/shell_main_mac.cc",
       "app/shell_main_mac.h",
     ]
     deps = [
       ":app_shell_lib",
     ]
   }
 }