Get rid of webkit/plugins/plugin_switches.* and move them to content/public/common/content_switches…

webkit/plugins/webkit_plugins.gyp

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'plugins_common',
       'type': 'static_library',
       'defines': [
         'WEBKIT_PLUGINS_IMPLEMENTATION',
       ],
       'include_dirs': [
         '<(INTERMEDIATE_DIR)',
         '<(SHARED_INTERMEDIATE_DIR)/ui',
       ],
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base_i18n',
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/base/base.gyp:base_static',
         '<(DEPTH)/base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '<(DEPTH)/net/net.gyp:net',
         '<(DEPTH)/ui/ui.gyp:ui',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
       ],
       'sources': [
         '../plugins/plugin_constants.cc',
         '../plugins/plugin_constants.h',
-        '../plugins/plugin_switches.cc',
-        '../plugins/plugin_switches.h',
       ],
       'conditions': [
         ['toolkit_uses_gtk == 1', {
           'dependencies': [
             '<(DEPTH)/build/linux/system.gyp:gtk',
           ],
           'sources/': [['exclude', '_x11\\.cc$']],
         }],
         ['OS!="win"', {
           'sources/': [['exclude', '_win\\.cc$']],
         }, {  # else: OS=="win"
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [ 4800, 4267 ],
           'sources/': [['exclude', '_posix\\.cc$']],
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
           ],
         }],
       ],
     },
   ],
 }