Aura/GTK integration: Create a small stub library that can talk to GTK.

chrome/browser/ui/libgtk2ui/libgtk2ui.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.
+
+{
+  'variables': {
+    'chromium_code': 1,
+  },
+  'targets': [
+    {
+      'target_name': 'gtk2ui',
+      'type': '<(component)',
+      'dependencies': [
+        '../../../../base/base.gyp:base',
+        '../../../../base/base.gyp:base_i18n',
+        '../../../../build/linux/system.gyp:gtk',
+        '../../../../skia/skia.gyp:skia',
+        '../../../../ui/ui.gyp:ui',
+        '../../../../ui/ui.gyp:ui_resources',
+        '../../../../ui/ui.gyp:ui_resources_2x',
+        '../../../../ui/ui.gyp:ui_resources_standard',
+        '../../../chrome_resources.gyp:chrome_extra_resources',
+        '../../../chrome_resources.gyp:chrome_resources',
+        '../../../chrome_resources.gyp:theme_resources',
+      ],
+      'defines': [
+        'LIBGTK2UI_IMPLEMENTATION',
+      ],
+      # Several of our source files are named _gtk2.cc. This isn't to
+      # differentiate them from their source files (ninja and make are sane
+      # build systems, unlike MSVS). It is instead to get around the rest of
+      # the normal, global gtk exclusion rules, as we are otherwise using gtk
+      # in a non-gtk build.
+      'sources': [
+        'chrome_gtk_frame.cc',
+        'chrome_gtk_frame.h',
+        'gtk2_ui.cc',
+        'gtk2_ui.h',
+        'gtk2_util.cc',
+        'gtk2_util.h',
+        'owned_widget_gtk2.cc',

[tfarina, 2012/06/07 17:02:05]

nit: list libgtk2ui_export.h here?

+        'owned_widget_gtk2.h',
+        'skia_utils_gtk2.cc',
+        'skia_utils_gtk2.h',
+      ],
+    },
+  ],
+}