[ObjC ARC] Converts ios/web:core to ARC.Automatically generated ARCMigrate commitNotable issues:…

ios/web/BUILD.gn

 # Copyright 2015 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("//ios/build/config.gni")
 import("//ios/web/js_compile.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 
 source_set("web_arc") {
@@ skipping 285 matching lines @@
 
   libs = [
     "CoreGraphics.framework",
     "WebKit.framework",
   ]
 
   allow_circular_includes_from = [ ":web_arc" ]
 }
 
 source_set("core") {
+  configs += [ "//build/config/compiler:enable_arc" ]
   deps = [
     "//base",
     "//url",
   ]
 
   sources = [
     "crw_network_activity_indicator_manager.h",
     "crw_network_activity_indicator_manager.mm",
+    "history_state_util.cc",
     "history_state_util.h",
-    "history_state_util.mm",
   ]
 }
 
 source_set("user_agent") {
   deps = [
     "//base",
   ]
 
   sources = [
     "public/user_agent.h",
@@ skipping 286 matching lines @@
 }
 
 grit("resources") {
   source = "ios_web_resources.grd"
   use_qualified_include = true
   outputs = [
     "grit/ios_web_resources.h",
     "ios_web_resources.pak",
   ]
 }