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

breakpad/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("//build/symlink.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
@@ skipping 876 matching lines @@
       "src/client/windows/sender/crash_report_sender.h",
       "src/common/windows/http_upload.cc",
       "src/common/windows/http_upload.h",
     ]
     configs += [ ":sender_config" ]
     public_configs = [ ":sender_config" ]
   }
 }
 
 if (is_android) {
-  # TODO(GYP) Delete this after we've converted everything to GN.
+  # TODO(GYP_GONE) Delete this after we've converted everything to GN.
   group("breakpad_unittests_deps") {
     testonly = true
     deps = [
       ":breakpad_unittests",
     ]
   }
 }