ATK accessibility support for web content on Aura Linux.

ui/accessibility/BUILD.gn

Index: ui/accessibility/BUILD.gn
diff --git a/ui/accessibility/BUILD.gn b/ui/accessibility/BUILD.gn
index 3fc3ba9ab4b89a609753b2bcecc7da929a15ed1d..cf57540d8d0f98df6b4c764a4572edd8af137810 100644
--- a/ui/accessibility/BUILD.gn
+++ b/ui/accessibility/BUILD.gn
@@ -10,34 +10,6 @@ if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
-if (use_x11) {
-  pkg_config("atk") {
-    packages = [ "atk" ]
-    atk_lib_dir = exec_script(pkg_config_script,
-                              [
-                                "--libdir",
-                                "atk",
-                              ],
-                              "string")
-    defines = [ "ATK_LIB_DIR=\"$atk_lib_dir\"" ]
-  }
-
-  # 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("atk_warnings") {
-    cflags = [
-      # glib uses the pre-c++11 typedef-as-static_assert hack.
-      "-Wno-unused-local-typedef",
-
-      # 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",
-    ]
-  }
-}
-
 component("accessibility") {
   sources = [
     "ax_node.cc",
@@ -81,7 +53,7 @@ component("accessibility") {
     public_deps += [ "//third_party/iaccessible2" ]
   }
 
-  if (use_aura && !is_chromeos && is_linux && use_x11) {
+  if (use_atk) {
     sources += [
       "platform/atk_util_auralinux.cc",
       "platform/atk_util_auralinux.h",
@@ -90,8 +62,8 @@ component("accessibility") {
     ]
 
     configs += [
-      ":atk",
-      ":atk_warnings",
+      "//build/config/linux:atk",
+      "//build/config/linux:atk_warnings",
       "//build/config/linux:gconf",
       "//build/config/linux:glib",
     ]