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

ios/web/history_state_util.mm

 // Copyright 2012 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/web/history_state_util.h"

[sdefresne, 2016/11/21 12:34:30]

This file has no Objective-C AFAICT. I think it would be better to just rename
it ios/web/history_state_util.cc

[stkhapugin, 2016/11/21 15:38:31]

Done.

 
 #include "base/logging.h"
 #include "url/gurl.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace web {
 namespace history_state_util {
 
 bool IsHistoryStateChangeValid(const GURL& currentUrl,
                                const GURL& toUrl) {
   // These two checks are very important to the security of the page. We cannot
   // allow the page to change the state to an invalid URL.
   CHECK(currentUrl.is_valid());
   CHECK(toUrl.is_valid());
 
   return toUrl.GetOrigin() == currentUrl.GetOrigin();
 }
 
 GURL GetHistoryStateChangeUrl(const GURL& currentUrl,
                               const GURL& baseUrl,
                               const std::string& destination) {
   if (!baseUrl.is_valid())
     return GURL();
   GURL toUrl = baseUrl.Resolve(destination);
 
   if (!toUrl.is_valid() || !IsHistoryStateChangeValid(currentUrl, toUrl))
     return GURL();
 
   return toUrl;
 }
 
 }  // namespace history_state_util
 }  // namespace web