Move strings from webkit/ to content/.

webkit/webkit_resources.gyp

 # Copyright 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': [
     {
       # GN version: //webkit:resources
       'target_name': 'webkit_resources',
       'type': 'none',
       'variables': {
         'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/webkit',
       },
       'actions': [
         {
           'action_name': 'webkit_resources',
           'variables': {
             'grit_grd_file': 'glue/resources/webkit_resources.grd',
           },
           'includes': [ '../build/grit_action.gypi' ],
         },
       ],
       'includes': [ '../build/grit_target.gypi' ],
     },
-    {
-      # GN version: //webkit:strings
-      'target_name': 'webkit_strings',
-      'type': 'none',
-      'variables': {
-        'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/webkit',
-      },
-      'actions': [
-        {
-          'action_name': 'webkit_strings',
-          'variables': {
-            'grit_grd_file': 'glue/webkit_strings.grd',
-          },
-          'includes': [ '../build/grit_action.gypi' ],
-        },
-      ],
-      'includes': [ '../build/grit_target.gypi' ],
-    },
   ]
 }