Linux: plumb fontconfig call out to the sandbox host.

chrome/chrome.gyp

 # Copyright (c) 2009 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': {
     'chromium_code': 1,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 2237 matching lines @@
         'renderer/renderer_histogram_snapshots.h',
         'renderer/renderer_logging.h',
         'renderer/renderer_logging_linux.cc',
         'renderer/renderer_logging_mac.mm',
         'renderer/renderer_logging_win.cc',
         'renderer/renderer_main.cc',
         'renderer/renderer_main_platform_delegate.h',
         'renderer/renderer_main_platform_delegate_linux.cc',
         'renderer/renderer_main_platform_delegate_mac.mm',
         'renderer/renderer_main_platform_delegate_win.cc',
+        'renderer/renderer_sandbox_support_linux.cc',
+        'renderer/renderer_sandbox_support_linux.h',
         'renderer/renderer_webkitclient_impl.cc',
         'renderer/renderer_webkitclient_impl.h',
         'renderer/user_script_slave.cc',
         'renderer/user_script_slave.h',
         'renderer/visitedlink_slave.cc',
         'renderer/visitedlink_slave.h',
         'renderer/webplugin_delegate_proxy.cc',
         'renderer/webplugin_delegate_proxy.h',
         'renderer/webworker_proxy.cc',
         'renderer/webworker_proxy.h',
@@ skipping 2537 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }