Continue with the FreeBSD port - this version builds and links, though...

app/app.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,
   },
   'includes': [
     '../build/common.gypi',
   ],
   'target_defaults': {
     'sources/': [
       ['exclude', '/(cocoa|gtk|win)/'],
       ['exclude', '_(cocoa|gtk|linux|mac|posix|skia|win|x)\\.(cc|mm?)$'],
       ['exclude', '/(gtk|win|x11)_[^/]*\\.cc$'],
     ],
     'conditions': [
-      ['OS=="linux"', {'sources/': [
+      ['OS=="linux" or OS=="freebsd"', {'sources/': [
         ['include', '/gtk/'],
         ['include', '_(gtk|linux|posix|skia|x)\\.cc$'],
         ['include', '/(gtk|x11)_[^/]*\\.cc$'],
       ]}],
       ['OS=="mac"', {'sources/': [
         ['include', '/cocoa/'],
         ['include', '_(cocoa|mac|posix)\\.(cc|mm?)$'],
       ]}, { # else: OS != "mac"
         'sources/': [
           ['exclude', '\\.mm?$'],
@@ skipping 88 matching lines @@
         'table_model.cc',
         'table_model.h',
         'table_model_observer.h',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '..',
         ],
       },
       'conditions': [
-        ['OS=="linux"', {
+        ['OS=="linux" or OS=="freebsd"', {
           'dependencies': [
             # font_gtk.cc uses fontconfig.
             # TODO(evanm): I think this is wrong; it should just use GTK.
             '../build/linux/system.gyp:fontconfig',
             '../build/linux/system.gyp:gtk',
           ],
           'conditions': [
             ['toolkit_views==0 and chromeos==0', {
               # Note: because of gyp predence rules this has to be defined as
               # 'sources/' rather than 'sources!'.
@@ skipping 21 matching lines @@
           ],
         }],
         ['OS!="win"', {
           'sources!': [
             'drag_drop_types.h',
             'gfx/icon_util.cc',
             'gfx/icon_util.h',
             'os_exchange_data.cc',
           ],
         }],
-        ['OS!="linux"', {
+        ['OS!="linux" and OS!="freebsd"', {
           'sources!': [
             'gtk_dnd_util.cc',
             'gtk_dnd_util.h',
           ],
         }],
       ],
     },
     {
       'target_name': 'app_unittests',
       'type': 'executable',
@@ skipping 18 matching lines @@
         'os_exchange_data_win_unittest.cc',
         'run_all_unittests.cc',
         'test_suite.h',
         'tree_node_iterator_unittest.cc',
         'win_util_unittest.cc',      
       ],
       'include_dirs': [
         '..',
       ],
       'conditions': [
-        ['OS=="linux"', {
+        ['OS=="linux" or OS=="freebsd"', {
           # TODO: Move these dependencies to platform-neutral once these
           # projects are generated by GYP.
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
         }],
         ['OS!="win"', {
           'sources!': [
             'gfx/icon_util_unittest.cc',
             'os_exchange_data_win_unittest.cc',
@@ skipping 121 matching lines @@
                 'process_outputs_as_sources': 1,
                 'message': 'Generating appid information in <(SHARED_INTERMEDIATE_DIR)/chrome/appid.h'
               },
             ],
           },
         ],
       ],
     },
   ],
 }