Use the WebTestProxy for layout tests in content_shell

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',
     # The "19" is so that sites that sniff for version think that this is
     # something reasonably current; the "77.34.5" is a hint that this isn't a
     # standard Chrome.
     'content_shell_version': '19.77.34.5',
   },
   'targets': [
     {
       'target_name': 'content_shell_lib',
       'type': 'static_library',
       'defines!': ['CONTENT_IMPLEMENTATION'],
       'defines': ['CONTENT_SHELL_VERSION="<(content_shell_version)"'],
       'variables': {
         'chromium_code': 1,
       },
       'dependencies': [
         'content_app',
         'content_browser',
         'content_common',
         'content_gpu',
+        'content_layouttest_support',
         'content_plugin',
         'content_ppapi_plugin',
         'content_renderer',
         'content_shell_resources',
         'content_utility',
         'content_worker',
         'content_resources.gyp:content_resources',
         '../base/base.gyp:base',
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../build/temp_gyp/googleurl.gyp:googleurl',
@@ skipping 609 matching lines @@
             'resource_dir': '../res',
             'native_libs_paths': ['<(SHARED_LIB_DIR)/libcontent_shell_content_view.so'],
             'additional_input_paths': ['<(PRODUCT_DIR)/content_shell/assets/content_shell.pak'],
           },
           'includes': [ '../build/java_apk.gypi' ],
         },
       ],
     }],  # OS=="android"
   ]
 }