[content shell] Add layout test specific font setup (for linux only right now)

content/content_tests.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.
 
 {
   'targets': [
     {
       'target_name': 'test_support_content',
       'type': 'static_library',
       'defines!': ['CONTENT_IMPLEMENTATION'],
@@ skipping 607 matching lines @@
             '../ppapi/ppapi_internal.gyp:ppapi_ipc',
             '../ppapi/ppapi_internal.gyp:ppapi_shared',
             '../ppapi/ppapi_internal.gyp:ppapi_unittest_shared',
             '../skia/skia.gyp:skia',
             '../testing/gmock.gyp:gmock',
             '../testing/gtest.gyp:gtest',
             '../third_party/mesa/mesa.gyp:osmesa',
             '../ui/ui.gyp:ui',
             '../webkit/support/webkit_support.gyp:clearkeycdmplugin',
             '../webkit/support/webkit_support.gyp:glue',
+            # TODO(jochen): Change this to DumpRenderTree_helpers once
+            # http://wkb.ug/99023 has landed.
+            '<(webkit_src_dir)/Tools/DumpRenderTree/DumpRenderTree.gyp/DumpRenderTree.gyp:DumpRenderTree',
           ],
           'include_dirs': [
             '..',
           ],
           'includes': [
             'browser/gpu/test_support_gpu.gypi',
           ],
           'defines': [
             'HAS_OUT_OF_PROC_TEST_RUNNER',
           ],
@@ skipping 273 matching lines @@
             'java_in_dir': '../content/shell/android/javatests',
             'resource_dir': '../res',
             'additional_src_dirs': ['../content/public/android/javatests/'],
           },
           'includes': [ '../build/java_apk.gypi' ],
         },
       ],
     }],
   ],
 }