make use of use_gconf & use_glib gn args in content/browser/

content/browser/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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//content/browser/browser.gni")
 import("//media/media_options.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
@@ skipping 261 matching lines @@
 
   if (use_atk) {
     sources +=
         rebase_path(content_browser_gypi_values.auralinux_browser_sources,
                     ".",
                     "//content")
 
     configs += [
       "//build/config/linux/atk",
       "//build/config/linux/atk:warnings",
-      "//build/config/linux/gconf",
-      "//build/config/linux:glib",
     ]
+
+    if (use_gconf) {
+      configs += [ "//build/config/linux/gconf" ]
+    }
+
+    if (use_glib) {
+      configs += [ "//build/config/linux:glib" ]
+    }
   }
 
   if (is_linux && use_aura) {
     deps += [ "//build/linux:fontconfig" ]
   }
 
   if (use_x11) {
     configs += [ "//build/config/linux:x11" ]
     deps += [ "//ui/gfx/x" ]
   }
@@ skipping 233 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }