Work on the Android GN build.

ui/base/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/ui.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
@@ skipping 284 matching lines @@
   }
 
   if (use_aura) {
     deps += [
       "//ui/events",
     ]
   } else {
     sources -= [
       "cursor/cursor.cc",
       "cursor/cursor.h",
+      "dragdrop/drag_utils_aura.cc",
       "x/selection_owner.cc",
       "x/selection_owner.h",
       "x/selection_requestor.cc",
       "x/selection_requestor.h",
       "x/selection_utils.cc",
       "x/selection_utils.h",
     ]
   }
+  if (!use_x11) {
+    sources -= [
+      "x/x11_util.cc",
+      "x/x11_util.h",
+      "x/x11_util_internal.h",
+    ]
+  }
 
   if (!use_aura || !is_linux) {
     sources -= [
       "resource/resource_bundle_auralinux.cc",
     ]
   }
 
   if (use_aura && is_win) {
     sources -= [
       "dragdrop/drag_utils_aura.cc",
@@ skipping 216 matching lines @@
       "../android/java/src/org/chromium/ui/base/DeviceFormFactor.java",
       "../android/java/src/org/chromium/ui/base/LocalizationUtils.java",
       "../android/java/src/org/chromium/ui/base/SelectFileDialog.java",
       "../android/java/src/org/chromium/ui/base/TouchDevice.java",
       "../android/java/src/org/chromium/ui/base/ViewAndroid.java",
       "../android/java/src/org/chromium/ui/base/WindowAndroid.java",
     ]
     jni_package = "base"
   }
 }