Address some TODO(GYP)s in the GN build.

build/config/android/rules.gni

 # 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("//base/android/linker/config.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/toolchain/toolchain.gni")
 import("//third_party/android_platform/config.gni")
@@ skipping 2062 matching lines @@
                                      rebase_path(invoker.isolate_file),
                                      "--replace",
                                      "<(DEPTH)=/",
                                    ],
                                    "scope",
                                    [ invoker.isolate_file ])
       data = isolate_values.files
     }
   }
 
-  # TODO(GYP): Delete once recipes no longer use this target.
+  # TODO: Delete once recipes no longer use this target.
   group("${target_name}_run") {
     public_deps = [
       ":${invoker.target_name}",
     ]
   }
   group("${target_name}_incremental") {
     public_deps = [
       ":${_apk_target_name}_dist_ijar",
       ":${_apk_target_name}_incremental",
       ":${_test_runner_target_name}_incremental",
@@ skipping 338 matching lines @@
       "--target",
       rebase_path(invoker.target, root_build_dir),
       "--output-directory",
       rebase_path(root_out_dir, root_build_dir),
     ]
     if (defined(invoker.flag_name)) {
       args += [ "--flag-name=${invoker.flag_name}" ]
     }
   }
 }