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

build/all.gyp

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'All',
       'type': 'none',
       'xcode_create_dependents_test_runner': 1,
@@ skipping 120 matching lines @@
             '../third_party/gles2_book/gles2_book.gyp:*',
             '../tools/memory_watcher/memory_watcher.gyp:*',
           ],
         }, {
           'dependencies': [
             '../third_party/libevent/libevent.gyp:*',
           ],
         }],
         ['toolkit_views==1', {
           'dependencies': [
+            '../ui/views/controls/webview/webview.gyp:*',
             '../ui/views/views.gyp:*',
           ],
         }],
         ['use_aura==1', {
           'dependencies': [
+            '../ash/ash.gyp:*',
             '../ui/aura/aura.gyp:*',
             '../ui/oak/oak.gyp:*',
-            '../ash/ash.gyp:*',
           ],
         }],
         ['remoting==1', {
           'dependencies': [
             '../remoting/remoting.gyp:*',
           ],
         }],
         ['use_openssl==0', {
           'dependencies': [
             '../net/third_party/nss/ssl.gyp:*',
@@ skipping 536 matching lines @@
             '../base/base.gyp:base_unittests_run',
             '../chrome/chrome.gyp:browser_tests_run',
             '../chrome/chrome.gyp:unit_tests_run',
             '../net/net.gyp:net_unittests_run',
           ],
         }, # target_name: chromium_swarm_tests
       ],
     }],
   ], # conditions
 }