Make crazy linker work in gn build

content/content_tests.gypi

 # Copyright (c) 2013 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.
 
 {
   'variables': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 1637 matching lines @@
           'dependencies': [
             'content.gyp:content_java',
             'content_perftests',
           ],
           'variables': {
             'test_suite_name': 'content_perftests',
           },
           'includes': [ '../build/apk_test.gypi' ],
         },
         {
-          # TODO(GN)
+          # GN: //content/shell/android:chromium_linker_test_apk
           'target_name': 'chromium_linker_test_apk',
           'type': 'none',
           'conditions': [
             ['target_arch != "x64" and target_arch != "arm64"', {
               'dependencies': [
                 'chromium_android_linker_test',
                 'content.gyp:content_icudata',
                 'content.gyp:content_java',
                 'content_shell_java',
               ],
@@ skipping 13 matching lines @@
                     ],
                   }],
                 ],
               },
               'includes': [ '../build/java_apk.gypi' ],
             },
            ],
           ],
         },
         {
-          # TODO(GN)
+          # GN: //content/shell/android:linker_test
           'target_name': 'chromium_android_linker_test',
           'type': 'shared_library',
           'defines!': ['CONTENT_IMPLEMENTATION'],
           'dependencies': [
             'chromium_android_linker_test_jni_headers',
             'content_shell_lib',
             # Required to include "content/public/browser/android/compositor.h"
             # in chromium_linker_test_android.cc :-(
             '../skia/skia.gyp:skia',
           ],
           'sources': [
             'shell/android/linker_test_apk/chromium_linker_test_android.cc',
             'shell/android/linker_test_apk/chromium_linker_test_linker_tests.cc',
           ],
         },
         {
-          # TODO(GN)
+          # GN: //content/shell/android:linker_test_jni_headers
           'target_name': 'chromium_android_linker_test_jni_headers',
           'type': 'none',
           'sources': [
             'shell/android/linker_test_apk/src/org/chromium/chromium_linker_test_apk/LinkerTests.java',
           ],
           'variables': {
             'jni_gen_package': 'content/shell',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
@@ skipping 205 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }