Improve GN header checker, make //ui pass.

base/test/BUILD.gn

 # Copyright (c) 2013 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/rules.gni")
 }
 
@@ skipping 83 matching lines @@
     "test_switches.h",
     "test_timeouts.cc",
     "test_timeouts.h",
     "thread_test_helper.cc",
     "thread_test_helper.h",
     "trace_event_analyzer.cc",
     "trace_event_analyzer.h",
     "values_test_util.cc",
     "values_test_util.h",
   ]
-  deps = [
+
+  public_deps = [
     "//base",
-    "//base/third_party/dynamic_annotations",
     "//base:i18n",
     "//base:base_static",
+  ]
+  deps = [
+    "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/libxml"
   ]
 
   if (!is_posix) {
     sources -= [
       "scoped_locale.cc",
       "scoped_locale.h",
     ]
@@ skipping 42 matching lines @@
 }
 
 if (is_android) {
   generate_jni("base_unittests_jni_headers") {
     sources = [
       "android/java/src/org/chromium/base/ContentUriTestUtils.java",
     ]
     jni_package = "base"
   }
 }