[iOS] Define bundle_data target for //ui unittests

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/buildflag_header.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
@@ skipping 684 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/ResourceBundle.java",
       "../android/java/src/org/chromium/ui/base/SelectFileDialog.java",
       "../android/java/src/org/chromium/ui/base/TouchDevice.java",
     ]
     jni_package = "base"
   }
 }
 
+bundle_data("ui_base_unittests_bundle_data") {
+  sources = [
+    "test/data/data_pack_unittest/truncated-header.pak",
+  ]
+  outputs = [
+    "{{bundle_resources_dir}}/" +
+        "{{source_root_relative_dir}}/{{source_file_part}}",
+  ]
+}
+
 # GYP version: ui/base/ui_base_tests.gyp:ui_base_unittests
 test("ui_base_unittests") {
   sources = [
     "ios/cru_context_menu_controller_unittest.mm",
     "l10n/l10n_util_mac_unittest.mm",
     "l10n/l10n_util_unittest.cc",
     "l10n/l10n_util_win_unittest.cc",
     "l10n/time_format_unittest.cc",
     "layout_unittest.cc",
     "material_design/material_design_controller_unittest.cc",
@@ skipping 77 matching lines @@
     if (!use_x11 && is_chromeos) {
       # These were already removed in the non-chromeos case.
       sources -= [ "ime/input_method_chromeos_unittest.cc" ]
     }
   }
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   deps = [
+    ":ui_base_unittests_bundle_data",
     "//base",
     "//base/test:test_support",
     "//net",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/icu",
     "//ui/base",
     "//ui/base:test_support",
     "//ui/base:ui_data_pack",
     "//ui/events:events_base",
     "//ui/events:test_support",
     "//ui/gfx:test_support",
     "//ui/resources",
     "//ui/resources:ui_test_pak",
     "//ui/strings",
     "//url",
   ]
 
-  if (is_ios) {
-    # TODO(GYP) lots of iOS-only steps for ui_base_unittests
-  }
-
   if (build_ime) {
     deps += [ "//ui/base/ime" ]
   }
 
+  if (is_ios) {
+    deps += [ "//ui/resources:ui_test_pak_bundle_data" ]
+  }
+
   if (is_win) {
     sources += [
       "dragdrop/os_exchange_data_win_unittest.cc",
       "win/hwnd_subclass_unittest.cc",
       "win/open_file_name_win_unittest.cc",
     ]
 
     ldflags = [
       "/DELAYLOAD:d2d1.dll",
       "/DELAYLOAD:d3d10_1.dll",
@@ skipping 87 matching lines @@
   }
   if (is_mac) {
     data += [ "$root_out_dir/ui_unittests Framework.framework/" ]
 
     if (is_asan && symbol_level == 0) {
       data += [ "$root_out_dir/ui_base_unittests.dSYM/" ]
     }
   }
 }
 # TODO(GYP) Mac (ui_base_tests_bundle)