Upstream code and resources for Chrome on iOS extensions.

ios/chrome/share_extension/BUILD.gn

Index: ios/chrome/share_extension/BUILD.gn
diff --git a/ios/chrome/share_extension/BUILD.gn b/ios/chrome/share_extension/BUILD.gn
index 148827185b647b5091b039a37be2fefce913522d..cba42d62a5ab0b3225b750bf9522ab9221342ad3 100644
--- a/ios/chrome/share_extension/BUILD.gn
+++ b/ios/chrome/share_extension/BUILD.gn
@@ -2,8 +2,14 @@
 # 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")
 import("//build/config/locales.gni")
+import("//build/config/mac/base_rules.gni")
+import("//build/mac/tweak_info_plist.gni")
+import("//ios/build/chrome_build.gni")
 import("//ios/chrome/extension_repack.gni")
+import("//ios/chrome/tools/strings/generate_localizable_strings.gni")
+import("//ios/public/provider/chrome/browser/build_config.gni")
 
 group("resources") {
   deps = [
@@ -16,3 +22,66 @@ extension_repack_all_locales("packed_resources") {
   input_locales = ios_packed_locales
   output_locales = ios_packed_locales_as_mac_outputs
 }
+
+tweak_info_plist("tweak_info_plist") {
+  info_plist = "Info.plist"
+}
+
+compile_plist("entitlements") {
+  format = "xml1"
+  substitutions = [ "IOS_BUNDLE_ID_PREFIX=$ios_app_bundle_id_prefix" ]
+  output_name = "$target_gen_dir/share_extension.appex.entitlements"
+  plist_templates =
+      [ "entitlements/external/share_extension.appex.entitlements" ] +
+      ios_chrome_entitlements_additions
+}
+
+ios_appex_bundle("share_extension") {
+  sources = [
+    "share_extension_view.h",
+    "share_extension_view.mm",
+    "share_view_controller.h",
+    "share_view_controller.mm",
+    "ui_util.h",
+    "ui_util.mm",
+  ]
+
+  configs += [ "//build/config/compiler:enable_arc" ]
+
+  deps = [
+    ":system_strings",
+    "//base",
+    "//ios/chrome/common/app_group",
+    "//ios/chrome/common/app_group:client",
+  ]
+  bundle_deps_filter = [ "//third_party/icu:icudata" ]
+
+  libs = [
+    "Foundation.framework",
+    "Social.framework",
+    "CoreGraphics.framework",
+    "MobileCoreServices.framework",
+    "UIKit.framework",
+  ]
+
+  extra_substitutions = [
+    "CHROME_CHANNEL_SCHEME=$url_channel_scheme",
+    "CHROMIUM_SHORT_NAME=$chromium_short_name",
+    "SHARE_EXTENSION_BUNDLE_ID=$chromium_bundle_id.ShareExtension",
+  ]
+
+  entitlements_target = ":entitlements"
+  info_plist_target = ":tweak_info_plist"
+}
+
+generate_localizable_strings("system_strings") {
+  visibility = [ ":*" ]
+  _packed_resources_target = "//ios/chrome/share_extension:packed_resources"
+  config_file = "share_extension_localize_strings_config.plist"
+  datapack_dir = get_label_info(_packed_resources_target, "target_gen_dir")
+  packed_locales = ios_packed_locales_as_mac_outputs
+  output_filenames = [ "Localizable.strings" ]
+  deps = [
+    _packed_resources_target,
+  ]
+}