[ARC] Converts part of ios/web/public to ARC.

Notable changes:none

BUG=651816
TEST=none

Review-Url: https://codereview.chromium.org/2375023006
Cr-Commit-Position: refs/heads/master@{#422759}

ios/web/BUILD.gn

@@ -149,10 +149,33 @@ source_set("web_arc") {
     "public/web_state/ui/crw_web_delegate.h",
     "public/web_state/ui/crw_web_view_content_view.h",
     "public/web_state/url_verification_constants.h",
+    "public/web_state/web_state.h",
+    "public/web_state/web_state_delegate.h",
+    "public/web_state/web_state_delegate_bridge.h",
+    "public/web_state/web_state_observer.h",
+    "public/web_state/web_state_observer_bridge.h",
+    "public/web_state/web_state_policy_decider.h",
+    "public/web_state/web_state_user_data.h",
+    "public/web_thread.h",
+    "public/web_thread_delegate.h",
+    "public/web_ui_ios_data_source.h",
+    "public/web_view_creation_util.h",
+    "public/webui/web_ui_ios.h",
+    "public/webui/web_ui_ios_controller.cc",
+    "public/webui/web_ui_ios_controller.h",
+    "public/webui/web_ui_ios_controller_factory.h",
+    "public/webui/web_ui_ios_message_handler.cc",
+    "public/webui/web_ui_ios_message_handler.h",
     "string_util.cc",
     "url_scheme_util.mm",
     "url_util.cc",
     "web_kit_constants.cc",
+    "web_state/blocked_popup_info.h",
+    "web_state/blocked_popup_info.mm",
+    "web_state/context_menu_params.mm",
+    "web_state/credential.cc",
+    "web_state/crw_pass_kit_downloader.h",
+    "web_state/crw_pass_kit_downloader.mm",
     "web_thread_impl.cc",
     "web_thread_impl.h",
     "web_view_creation_util.mm",
@@ -214,29 +237,6 @@ source_set("web") {
   ]
 
   sources = [
-    "public/web_state/web_state.h",
-    "public/web_state/web_state_delegate.h",
-    "public/web_state/web_state_delegate_bridge.h",
-    "public/web_state/web_state_observer.h",
-    "public/web_state/web_state_observer_bridge.h",
-    "public/web_state/web_state_policy_decider.h",
-    "public/web_state/web_state_user_data.h",
-    "public/web_thread.h",
-    "public/web_thread_delegate.h",
-    "public/web_ui_ios_data_source.h",
-    "public/web_view_creation_util.h",
-    "public/webui/web_ui_ios.h",
-    "public/webui/web_ui_ios_controller.cc",
-    "public/webui/web_ui_ios_controller.h",
-    "public/webui/web_ui_ios_controller_factory.h",
-    "public/webui/web_ui_ios_message_handler.cc",
-    "public/webui/web_ui_ios_message_handler.h",
-    "web_state/blocked_popup_info.h",
-    "web_state/blocked_popup_info.mm",
-    "web_state/context_menu_params.mm",
-    "web_state/credential.cc",
-    "web_state/crw_pass_kit_downloader.h",
-    "web_state/crw_pass_kit_downloader.mm",
     "web_state/crw_web_view_proxy_impl.h",
     "web_state/crw_web_view_proxy_impl.mm",
     "web_state/crw_web_view_scroll_view_proxy.mm",

ios/web/web_state/blocked_popup_info.mm

@@ -4,6 +4,10 @@
 
 #include "ios/web/web_state/blocked_popup_info.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace web {
 
 BlockedPopupInfo::BlockedPopupInfo(const GURL& url,

ios/web/web_state/context_menu_params.mm

@@ -4,6 +4,10 @@
 
 #import "ios/web/public/web_state/context_menu_params.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace web {
 
 ContextMenuParams::ContextMenuParams()

ios/web/web_state/crw_pass_kit_downloader.mm

@@ -17,6 +17,10 @@
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_context_getter.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 using net::URLFetcher;
 using net::URLFetcherDelegate;
 using net::URLRequestContextGetter;
@@ -124,7 +128,6 @@ class PassKitFetcherDelegate : public URLFetcherDelegate {
 - (void)dealloc {
   [[CRWNetworkActivityIndicatorManager sharedInstance]
       clearNetworkTasksForGroup:[self networkActivityKey]];
-  [super dealloc];
 }
 
 - (BOOL)isMIMETypePassKitType:(NSString*)MIMEType {