Clean up plug-in placeholders:

chrome/chrome_renderer.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.
 
 {
   'targets': [
     {
       'target_name': 'renderer',
       'type': 'static_library',
       'dependencies': [
@@ skipping 90 matching lines @@
         'renderer/resources/extensions/apitest.js',
         'renderer/resources/extensions/app.js',
         'renderer/resources/extensions/event.js',
         'renderer/resources/extensions/file_browser_private.js',
         'renderer/resources/extensions/greasemonkey_api.js',
         'renderer/resources/extensions/json_schema.js',
         'renderer/resources/extensions/miscellaneous_bindings.js',
         'renderer/resources/extensions/schema_generated_bindings.js',
         'renderer/about_handler.cc',
         'renderer/about_handler.h',
-        'renderer/blocked_plugin.cc',
-        'renderer/blocked_plugin.h',
         'renderer/chrome_content_renderer_client.cc',
         'renderer/chrome_content_renderer_client.h',
         'renderer/chrome_ppapi_interfaces.cc',
         'renderer/chrome_ppapi_interfaces.h',
         'renderer/chrome_ppb_pdf_impl.cc',
         'renderer/chrome_ppb_pdf_impl.h',
         'renderer/chrome_render_process_observer.cc',
         'renderer/chrome_render_process_observer.h',
         'renderer/chrome_render_view_observer.cc',
         'renderer/chrome_render_view_observer.h',
         'renderer/content_settings_observer.cc',
         'renderer/content_settings_observer.h',
+        'renderer/custom_menu_commands.h',
         'renderer/external_host_bindings.cc',
         'renderer/external_host_bindings.h',
         'renderer/external_extension.cc',
         'renderer/external_extension.h',
         'renderer/localized_error.cc',
         'renderer/localized_error.h',
         'renderer/page_click_listener.h',
         'renderer/page_click_tracker.cc',
         'renderer/page_click_tracker.h',
         'renderer/page_load_histograms.cc',
         'renderer/page_load_histograms.h',
-        'renderer/plugin_uma.cc',
-        'renderer/plugin_uma.h',
+        'renderer/plugins/blocked_plugin.cc',
+        'renderer/plugins/blocked_plugin.h',
+        'renderer/plugins/missing_plugin.cc',
+        'renderer/plugins/missing_plugin.h',
+        'renderer/plugins/plugin_placeholder.cc',
+        'renderer/plugins/plugin_placeholder.h',
+        'renderer/plugins/plugin_uma.cc',
+        'renderer/plugins/plugin_uma.h',
         'renderer/prerender/prerender_helper.cc',
         'renderer/prerender/prerender_helper.h',
         'renderer/print_web_view_helper.cc',
         'renderer/print_web_view_helper.h',
         'renderer/print_web_view_helper_linux.cc',
         'renderer/print_web_view_helper_mac.mm',
         'renderer/print_web_view_helper_win.cc',
         'renderer/renderer_histogram_snapshots.cc',
         'renderer/renderer_histogram_snapshots.h',
         'renderer/renderer_tracking.cc',
@@ skipping 92 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }