Add remaining trivial targets for the Linux GN build

components/components_tests.gyp

 # 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.
 
 {
   'variables': {
     # This turns on e.g. the filename-based detection of which
     # platforms to include source files on (e.g. files ending in
     # _mac.h or _mac.cc are only compiled on MacOSX).
     'chromium_code': 1,
@@ skipping 1019 matching lines @@
             }],
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [4267, ],
         },
       ],
     }],
     ['OS != "ios" and android_webview_build == 0', {
       'targets': [
         {
+          # GN: //components:components_perftests
           'target_name': 'components_perftests',
           'type': '<(gtest_target_type)',
           'dependencies': [
             '../base/base.gyp:base',
             '../base/base.gyp:test_support_perf',
             '../content/content_shell_and_tests.gyp:test_support_content',
             '../testing/gtest.gyp:gtest',
             'components.gyp:visitedlink_browser',
           ],
          'include_dirs': [
@@ skipping 184 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'components_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }