[ARC] [Split this CL] Convert ios/web/webui to ARC.

ios/web/BUILD.gn

Index: ios/web/BUILD.gn
diff --git a/ios/web/BUILD.gn b/ios/web/BUILD.gn
index 6cb370a9d86f2492698c570c081bd062d51dd5c3..0f2962d69b0e6f0d22978db3d85c226098ab9110 100644
--- a/ios/web/BUILD.gn
+++ b/ios/web/BUILD.gn
@@ -7,6 +7,34 @@ import("//ios/web/js_compile.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 
+source_set("web_arc_transition") {
+  deps = [
+    ":core",
+    ":js_resources",
+    ":resources",
+    ":user_agent",
+    "//base",
+    "//components/url_formatter",
+    "//ios/net",
+    "//ios/third_party/blink:html_tokenizer",
+    "//mojo/public/cpp/system",
+    "//mojo/public/js",
+    "//net",
+    "//services/shell/public/cpp",
+    "//ui/base",
+    "//ui/gfx",
+    "//ui/gfx/geometry:geometry",
+    "//ui/resources",
+    "//url",
+  ]
+
+  sources = []
+
+  libs = [ "WebKit.framework" ]
+
+  cflags_objcc = [ "-ccc-arcmt-modify" ]
+}
+
 source_set("web_arc") {
   deps = [
     ":core",
@@ -28,6 +56,12 @@ source_set("web_arc") {
     "//url",
   ]
 
+  allow_circular_includes_from = [ ":web_arc_transition" ]
+
+  public_deps = [
+    ":web_arc_transition",
+  ]
+
   sources = [
     "active_state_manager_impl.h",
     "active_state_manager_impl.mm",
@@ -99,6 +133,31 @@ source_set("web_arc") {
     "web_thread_impl.cc",
     "web_thread_impl.h",
     "web_view_creation_util.mm",
+    "webui/crw_web_ui_manager.h",
+    "webui/crw_web_ui_manager.mm",
+    "webui/crw_web_ui_page_builder.h",
+    "webui/crw_web_ui_page_builder.mm",
+    "webui/mojo_facade.h",
+    "webui/mojo_facade.mm",
+    "webui/mojo_js_constants.cc",
+    "webui/mojo_js_constants.h",
+    "webui/shared_resources_data_source_ios.h",
+    "webui/shared_resources_data_source_ios.mm",
+    "webui/url_data_manager_ios.cc",
+    "webui/url_data_manager_ios.h",
+    "webui/url_data_manager_ios_backend.h",
+    "webui/url_data_manager_ios_backend.mm",
+    "webui/url_data_source_ios.mm",
+    "webui/url_data_source_ios_impl.cc",
+    "webui/url_data_source_ios_impl.h",
+    "webui/url_fetcher_block_adapter.h",
+    "webui/url_fetcher_block_adapter.mm",
+    "webui/web_ui_ios_controller_factory_registry.cc",
+    "webui/web_ui_ios_controller_factory_registry.h",
+    "webui/web_ui_ios_data_source_impl.h",
+    "webui/web_ui_ios_data_source_impl.mm",
+    "webui/web_ui_ios_impl.h",
+    "webui/web_ui_ios_impl.mm",
   ]
 
   libs = [ "WebKit.framework" ]
@@ -129,6 +188,7 @@ source_set("web") {
 
   public_deps = [
     ":web_arc",
+    ":web_arc_transition",
   ]
 
   sources = [
@@ -270,36 +330,14 @@ source_set("web") {
     "web_state/web_view_internal_creation_util.mm",
     "web_state/wk_web_view_security_util.h",
     "web_state/wk_web_view_security_util.mm",
-    "webui/crw_web_ui_manager.h",
-    "webui/crw_web_ui_manager.mm",
-    "webui/crw_web_ui_page_builder.h",
-    "webui/crw_web_ui_page_builder.mm",
-    "webui/mojo_facade.h",
-    "webui/mojo_facade.mm",
-    "webui/mojo_js_constants.cc",
-    "webui/mojo_js_constants.h",
-    "webui/shared_resources_data_source_ios.h",
-    "webui/shared_resources_data_source_ios.mm",
-    "webui/url_data_manager_ios.cc",
-    "webui/url_data_manager_ios.h",
-    "webui/url_data_manager_ios_backend.h",
-    "webui/url_data_manager_ios_backend.mm",
-    "webui/url_data_source_ios.mm",
-    "webui/url_data_source_ios_impl.cc",
-    "webui/url_data_source_ios_impl.h",
-    "webui/url_fetcher_block_adapter.h",
-    "webui/url_fetcher_block_adapter.mm",
-    "webui/web_ui_ios_controller_factory_registry.cc",
-    "webui/web_ui_ios_controller_factory_registry.h",
-    "webui/web_ui_ios_data_source_impl.h",
-    "webui/web_ui_ios_data_source_impl.mm",
-    "webui/web_ui_ios_impl.h",
-    "webui/web_ui_ios_impl.mm",
   ]
 
   libs = [ "WebKit.framework" ]
 
-  allow_circular_includes_from = [ ":web_arc" ]
+  allow_circular_includes_from = [
+    ":web_arc",
+    ":web_arc_transition",
+  ]
 }
 
 source_set("core") {