Relanding "views: Add a gyp file to build webview.". Try 2.

content/content_shell.gypi

 # Copyright (c) 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.
 
 {
   'variables': {
     'content_shell_product_name': 'Content Shell',
   },
   'targets': [
     {
@@ skipping 145 matching lines @@
         ['os_posix==1 and use_aura==1 and linux_use_tcmalloc==1', {
           'dependencies': [
             # This is needed by content/app/content_main_runner.cc
             '../base/allocator/allocator.gyp:allocator',
           ],
         }],
         ['use_aura==1', {
           'dependencies': [
             '../ui/aura/aura.gyp:aura',
             '../ui/base/strings/ui_strings.gyp:ui_strings',
+            '../ui/views/controls/webview/webview.gyp:webview',
             '../ui/views/views.gyp:views',
             '../ui/ui.gyp:ui_resources',
           ],
           'sources/': [
             ['exclude', 'shell/shell_gtk.cc'],
             ['exclude', 'shell/shell_win.cc'],
           ],
         }],  # use_aura==1
         ['chromeos==1', {
           'dependencies': [
@@ skipping 496 matching lines @@
               'dependencies': [
                 'content_java',
               ],
             }
           ],
         },
       ],
     }],  # OS=="android"
   ]
 }