Upstream Chrome on iOS source code [11/11].

ios/chrome/browser/ui/first_run/BUILD.gn

 # Copyright 2016 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.
 
 bundle_data("assets") {
   sources = [
     "resources/FirstRun.xcassets/checkbox.imageset/Contents.json",
     "resources/FirstRun.xcassets/checkbox.imageset/checkbox.png",
     "resources/FirstRun.xcassets/checkbox.imageset/checkbox@2x.png",
     "resources/FirstRun.xcassets/checkbox.imageset/checkbox@2x~ipad.png",
     "resources/FirstRun.xcassets/checkbox.imageset/checkbox@3x.png",
     "resources/FirstRun.xcassets/checkbox.imageset/checkbox~ipad.png",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/Contents.json",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/checkbox_checked.png",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/checkbox_checked@2x.png",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/checkbox_checked@2x~ipad.png",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/checkbox_checked@3x.png",
     "resources/FirstRun.xcassets/checkbox_checked.imageset/checkbox_checked~ipad.png",
   ]
   outputs = [
     "{{bundle_resources_dir}}/{{source_file_part}}",
   ]
 }
+
+source_set("first_run") {
+  sources = [
+    "first_run_chrome_signin_view_controller.h",
+    "first_run_chrome_signin_view_controller.mm",
+    "first_run_histograms.h",
+    "first_run_util.h",
+    "first_run_util.mm",
+    "static_file_view_controller.h",
+    "static_file_view_controller.mm",
+    "welcome_to_chrome_view.h",
+    "welcome_to_chrome_view.mm",
+    "welcome_to_chrome_view_controller.h",
+    "welcome_to_chrome_view_controller.mm",
+  ]
+  deps = [
+    "//base",
+    "//base:i18n",
+    "//components/metrics",
+    "//components/prefs",
+    "//components/signin/core/browser",
+    "//ios/chrome/app/strings",
+    "//ios/chrome/browser",
+    "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/crash_report",
+    "//ios/chrome/browser/first_run",
+    "//ios/chrome/browser/signin",
+    "//ios/chrome/browser/tabs",
+    "//ios/chrome/browser/ui",
+    "//ios/chrome/browser/ui/authentication",
+    "//ios/chrome/browser/ui/commands",
+    "//ios/chrome/browser/ui/fancy_ui",
+    "//ios/chrome/browser/ui/first_run:assets",
+    "//ios/chrome/browser/ui/material_components",
+    "//ios/chrome/browser/ui/promos",
+    "//ios/chrome/browser/ui/settings",
+    "//ios/chrome/browser/ui/sync",
+    "//ios/chrome/browser/ui/util",
+    "//ios/chrome/common",
+    "//ios/public/provider/chrome/browser",
+    "//ios/public/provider/chrome/browser/signin",
+    "//ios/third_party/material_components_ios",
+    "//ios/third_party/material_roboto_font_loader_ios",
+    "//ios/web",
+    "//ui/base",
+    "//ui/gfx",
+    "//url",
+  ]
+  libs = [ "UIKit.framework" ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "first_run_util_unittest.mm",
+    "welcome_to_chrome_view_controller_unittest.mm",
+  ]
+  deps = [
+    ":first_run",
+    "//base",
+    "//components/metrics",
+    "//components/prefs",
+    "//components/prefs:test_support",
+    "//ios/chrome/browser/browser_state:test_support",
+    "//ios/chrome/browser/tabs",
+    "//ios/chrome/browser/ui",
+    "//ios/chrome/browser/ui/fancy_ui",
+    "//ios/chrome/test:test_support",
+    "//ios/web:test_support",
+    "//testing/gtest",
+    "//third_party/ocmock",
+  ]
+}
+
+source_set("eg_tests") {
+  testonly = true
+  sources = [
+    "first_run_egtest.mm",
+  ]
+  deps = [
+    "//base",
+    "//components/metrics",
+    "//components/prefs",
+    "//components/signin/core/browser",
+    "//ios/chrome/app:app_internal",
+    "//ios/chrome/app/strings",
+    "//ios/chrome/browser",
+    "//ios/chrome/browser/geolocation:geolocation_internal",
+    "//ios/chrome/browser/geolocation:test_support",
+    "//ios/chrome/browser/signin",
+    "//ios/chrome/browser/sync",
+    "//ios/chrome/browser/ui/first_run",
+    "//ios/chrome/test/app:test_support",
+    "//ios/chrome/test/earl_grey:test_support",
+    "//ios/public/provider/chrome/browser/signin:test_support",
+    "//ios/third_party/earl_grey",
+    "//ui/base",
+  ]
+  libs = [ "XCTest.framework" ]
+}