Exclude PluginService for builds with enable_plugins==0

chrome/chrome_browser_ui.gypi

 # Copyright 2012 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': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 2208 matching lines @@
         }, {  # configuration_policy==0
           'sources/': [
             ['exclude', 'browser/ui/webui/policy_ui.cc'],
             ['exclude', 'browser/ui/webui/policy_ui.h'],
           ],
         }],
         ['enable_plugins==1', {
           'dependencies': [
             '../ppapi/ppapi_internal.gyp:ppapi_ipc',
           ],
+        }, {  # enable_plugins == 0
+          'sources!': [
+            'browser/ui/hung_plugin_tab_helper.cc',
+            'browser/ui/hung_plugin_tab_helper.h',
+          ], 
         }],
         ['safe_browsing==1', {
           'defines': [
             'FULL_SAFE_BROWSING',
           ],
         }, {  # safe_browsing==0 || safe_browsing==2
           'dependencies!': [
             'safe_browsing_proto',
             'safe_browsing_report_proto',
             '../third_party/libusb/libusb.gyp:libusb',
@@ skipping 530 matching lines @@
         }, { # else: enable_app_list==0
           'sources/': [
             ['exclude', '^browser/ui/views/app_list/'],
             ['exclude', '^browser/ui/app_list/'],
           ]
         }],
       ],
     },
   ],
 }