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

ios/chrome/browser/ui/BUILD.gn

Index: ios/chrome/browser/ui/BUILD.gn
diff --git a/ios/chrome/browser/ui/BUILD.gn b/ios/chrome/browser/ui/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..0f061806e861dbf438f4409ec83dad3d031f7213
--- /dev/null
+++ b/ios/chrome/browser/ui/BUILD.gn
@@ -0,0 +1,84 @@
+# 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.
+
+import("//build/config/ios/rules.gni")
+
+source_set("ui") {
+  sources = [
+    "UIView+SizeClassSupport.h",
+    "UIView+SizeClassSupport.mm",
+    "animation_util.h",
+    "animation_util.mm",
+    "background_generator.h",
+    "background_generator.mm",
+    "browser_otr_state.h",
+    "browser_otr_state.mm",
+    "favicon_view.h",
+    "favicon_view.mm",
+    "file_locations.h",
+    "file_locations.mm",
+    "image_util.h",
+    "image_util.mm",
+    "native_content_controller.h",
+    "native_content_controller.mm",
+    "orientation_limiting_navigation_controller.h",
+    "orientation_limiting_navigation_controller.mm",
+    "prerender_final_status.h",
+    "reversed_animation.h",
+    "reversed_animation.mm",
+    "rtl_geometry.h",
+    "rtl_geometry.mm",
+    "show_mail_composer_util.h",
+    "show_mail_composer_util.mm",
+    "show_privacy_settings_util.h",
+    "show_privacy_settings_util.mm",
+    "side_swipe_gesture_recognizer.h",
+    "side_swipe_gesture_recognizer.mm",
+    "ui_util.h",
+    "ui_util.mm",
+    "uikit_ui_util.h",
+    "uikit_ui_util.mm",
+    "url_loader.h",
+  ]
+  deps = [
+    "//base",
+    "//base:i18n",
+    "//ios/chrome/browser:browser_no_public_deps",
+    "//ios/chrome/browser/favicon",
+    "//ios/chrome/browser/ui/commands",
+    "//ios/public/provider/chrome/browser",
+    "//ios/web",
+    "//ui/base",
+    "//ui/gfx",
+  ]
+  allow_circular_includes_from = [ "//ios/chrome/browser/ui/commands" ]
+  libs = [
+    "Accelerate.framework",
+    "CoreGraphics.framework",
+    "QuartzCore.framework",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "native_content_controller_unittest.mm",
+    "ui_util_unittest.mm",
+    "uikit_ui_util_unittest.mm",
+  ]
+  deps = [
+    ":native_content_controller_test_xib",
+    ":ui",
+    "//base",
+    "//testing/gtest",
+    "//third_party/ocmock",
+    "//url",
+  ]
+}
+
+bundle_data_xib("native_content_controller_test_xib") {
+  visibility = [ ":unit_tests" ]
+  testonly = true
+  source = "native_content_controller_test.xib"
+}