Split //ios/chrome/browser in multiple targets.

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

Index: ios/chrome/browser/ui/webui/BUILD.gn
diff --git a/ios/chrome/browser/ui/webui/BUILD.gn b/ios/chrome/browser/ui/webui/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..89e36b5988bb42630531213099889250a7c8d89a
--- /dev/null
+++ b/ios/chrome/browser/ui/webui/BUILD.gn
@@ -0,0 +1,50 @@
+# 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.
+
+source_set("webui") {
+  sources = [
+    "about_ui.cc",
+    "about_ui.h",
+    "crashes_ui.cc",
+    "crashes_ui.h",
+    "flags_ui.cc",
+    "flags_ui.h",
+    "mojo_web_ui_ios_controller.h",
+    "physical_web_ui.cc",
+    "physical_web_ui.h",
+    "version_handler.cc",
+    "version_handler.h",
+    "version_ui.h",
+    "version_ui.mm",
+  ]
+
+  deps = [
+    "//base",
+    "//base:i18n",
+    "//components/crash/core/browser",
+    "//components/flags_ui",
+    "//components/physical_web/data_source",
+    "//components/physical_web/webui",
+    "//components/prefs",
+    "//components/resources",
+    "//components/strings",
+    "//components/version_info",
+    "//components/version_ui",
+    "//google_apis",
+    "//ios/chrome/app/strings",
+    "//ios/chrome/browser:about_flags",
+    "//ios/chrome/browser:browser_no_public_deps",
+    "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/crash_report",
+    "//ios/chrome/browser/metrics",
+    "//ios/chrome/browser/ui",
+    "//ios/chrome/common",
+    "//ios/web",
+    "//net",
+    "//services/service_manager/public/cpp",
+    "//third_party/brotli",
+    "//ui/base",
+    "//url",
+  ]
+}