Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtk2ui/BUILD.gn

-# Copyright 2014 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.
-
-assert(is_linux, "This file should only be referenced on Linux")
-
-import("//build/config/features.gni")
-import("//build/config/ui.gni")
-
-# gn orders flags on a target before flags from configs. The default config
-# adds -Wall, and these flags have to be after -Wall -- so they need to come
-# from a config and can't be on the target directly.
-config("libgtk2ui_warnings") {
-  if (is_clang) {
-    cflags = [
-      # G_DEFINE_TYPE automatically generates a *get_instance_private inline
-      # function after glib 2.37. That's unused. Prevent to complain about it.
-      "-Wno-unused-function",
-
-      # G_STATIC_ASSERT uses a typedef as a static_assert.
-      "-Wno-unused-local-typedef",
-    ]
-  }
-}
-
-component("libgtk2ui") {
-  sources = [
-    "app_indicator_icon.cc",
-    "app_indicator_icon.h",
-    "app_indicator_icon_menu.cc",
-    "app_indicator_icon_menu.h",
-    "chrome_gtk_frame.cc",
-    "chrome_gtk_frame.h",
-    "chrome_gtk_menu_subclasses.cc",
-    "chrome_gtk_menu_subclasses.h",
-    "gtk2_event_loop.cc",
-    "gtk2_event_loop.h",
-    "gtk2_key_bindings_handler.cc",
-    "gtk2_key_bindings_handler.h",
-    "gtk2_status_icon.cc",
-    "gtk2_status_icon.h",
-    "gtk2_ui.cc",
-    "gtk2_ui.h",
-    "gtk2_util.cc",
-    "gtk2_util.h",
-    "libgtk2ui_export.h",
-    "menu_util.cc",
-    "menu_util.h",
-    "native_theme_gtk2.cc",
-    "native_theme_gtk2.h",
-    "print_dialog_gtk2.cc",
-    "print_dialog_gtk2.h",
-    "printing_gtk2_util.cc",
-    "printing_gtk2_util.h",
-    "select_file_dialog_impl.cc",
-    "select_file_dialog_impl.h",
-    "select_file_dialog_impl_gtk2.cc",
-    "select_file_dialog_impl_gtk2.h",
-    "select_file_dialog_impl_kde.cc",
-    "skia_utils_gtk2.cc",
-    "skia_utils_gtk2.h",
-    "unity_service.cc",
-    "unity_service.h",
-    "x11_input_method_context_impl_gtk2.cc",
-    "x11_input_method_context_impl_gtk2.h",
-  ]
-
-  if (use_gconf) {
-    sources += [
-      "gconf_listener.cc",
-      "gconf_listener.h",
-    ]
-    configs += [ "//build/config/linux/gconf" ]
-  }
-  defines = [ "LIBGTK2UI_IMPLEMENTATION" ]
-
-  if (use_cups) {
-    configs += [ "//printing:cups" ]
-  }
-
-  # GTK2 pulls pangoft2 as dependency, and pangoft2 depends on harfbuzz.
-  # To avoid missing indirectly referenced harfbuzz symbols from pango,
-  # some hack is required when bundled harfbuzz is used and component build is
-  # disabled.
-  # See crbug.com/462689 for details.
-  all_dependent_configs = [ "//third_party/harfbuzz-ng:pangoft2_link_hack" ]
-
-  configs += [
-    ":libgtk2ui_warnings",
-    "//build/config/linux:x11",
-  ]
-
-  deps = [
-    "//base",
-    "//base:i18n",
-    "//base/third_party/dynamic_annotations",
-    "//chrome:extra_resources",
-    "//chrome:resources",
-    "//chrome:strings",
-    "//chrome/app:command_ids",
-    "//chrome/app/theme:theme_resources",
-    "//components/resources",
-    "//content/public/browser",
-    "//printing",
-    "//skia",
-    "//ui/aura",
-    "//ui/base",
-    "//ui/base/ime",
-    "//ui/display",
-    "//ui/events",
-    "//ui/events:events_base",
-    "//ui/events/platform/x11",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-    "//ui/gfx/x",
-    "//ui/native_theme",
-    "//ui/resources",
-    "//ui/shell_dialogs",
-    "//ui/strings",
-    "//ui/views",
-  ]
-
-  if (use_gtk3) {
-    deps += [
-      "//build/config/linux/gtk3",
-      "//build/config/linux/gtk3:gtkprint3",
-    ]
-  } else {
-    deps += [
-      "//build/config/linux/gtk2",
-      "//build/config/linux/gtk2:gtkprint2",
-    ]
-  }
-}