GN: Add -Wl,-z defs on linux and fix errors

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/linux/pkg_config.gni")
 
 pkg_config("gtk") {
@@ skipping 82 matching lines @@
       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",
       ]
     }
   }
-  configs += [ ":libgtk2ui_warnings" ]
+  configs += [
+    ":libgtk2ui_warnings",
+    "//build/config/linux:x11",
+  ]
 
   deps = [
     "//base",
+    "//base/third_party/dynamic_annotations",
     "//base:i18n",
-    "//base/third_party/dynamic_annotations",
     "//chrome/app/theme:theme_resources",
     "//chrome:extra_resources",
     "//chrome:resources",
     "//chrome:strings",
     "//components/resources",
+    "//content/public/browser",
+    "//printing",
     "//skia",
+    "//third_party/mojo/src/mojo/edk/system",
+    "//ui/aura",
     "//ui/base",
+    "//ui/events",
+    "//ui/events:events_base",
+    "//ui/gfx",
+    "//ui/gfx/x",
+    "//ui/native_theme",
     "//ui/resources",
+    "//ui/shell_dialogs",
     "//ui/strings",
     "//ui/views",
   ]
 }