Clean up plug-in placeholders:

chrome/chrome_tests.gypi

 # Copyright (c) 2011 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.
 {
   'target_defaults': {
     'conditions': [
       ['strip_tests==1', {
         'cflags!': [ '-g' ],
         'ldflags': [ '-Wl,--strip-debug' ],
       }],
@@ skipping 1968 matching lines @@
         'common/time_format_unittest.cc',
         'common/web_apps_unittest.cc',
         'common/worker_thread_ticker_unittest.cc',
         'common/zip_reader_unittest.cc',
         'common/zip_unittest.cc',
         'renderer/extensions/chrome_v8_context_set_unittest.cc',
         'renderer/extensions/extension_api_json_validity_unittest.cc',
         'renderer/extensions/json_schema_unittest.cc',
         'renderer/net/predictor_queue_unittest.cc',
         'renderer/net/renderer_predictor_unittest.cc',
-        'renderer/plugin_uma_unittest.cc',
+        'renderer/plugins/plugin_uma_unittest.cc',
         'renderer/renderer_about_handler_unittest.cc',
         'renderer/safe_browsing/features_unittest.cc',
         'renderer/safe_browsing/murmurhash3_util_unittest.cc',
         'renderer/safe_browsing/phishing_term_feature_extractor_unittest.cc',
         'renderer/safe_browsing/phishing_url_feature_extractor_unittest.cc',
         'renderer/safe_browsing/scorer_unittest.cc',
         'renderer/spellchecker/spellcheck_provider_unittest.cc',
         'renderer/spellchecker/spellcheck_unittest.cc',
         'renderer/spellchecker/spellcheck_worditerator_unittest.cc',
         'service/cloud_print/cloud_print_helpers_unittest.cc',
@@ skipping 2339 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }