Upstream Chrome on iOS source code [8/11].

ios/chrome/browser/ui/settings/settings_utils.mm

+// Copyright 2013 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/chrome/browser/ui/settings/settings_utils.h"
+
+#include "base/ios/weak_nsobject.h"
+#include "base/mac/scoped_nsobject.h"
+#import "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
+#import "ios/chrome/browser/ui/commands/generic_chrome_command.h"
+#include "ios/chrome/browser/ui/commands/ios_command_ids.h"
+#import "ios/chrome/browser/ui/commands/open_url_command.h"
+
+namespace ios_internal_settings {
+
+ProceduralBlockWithURL BlockToOpenURL(UIResponder* responder) {
+  base::WeakNSObject<UIResponder> weakResponder(responder);
+  ProceduralBlockWithURL blockToOpenURL = ^(const GURL& url) {
+    base::scoped_nsobject<UIResponder> strongResponder([weakResponder retain]);
+    if (!strongResponder)
+      return;
+    base::scoped_nsobject<OpenUrlCommand> command(
+        [[OpenUrlCommand alloc] initWithURLFromChrome:url]);
+    [command setTag:IDC_CLOSE_SETTINGS_AND_OPEN_URL];
+    [strongResponder chromeExecuteCommand:command];
+  };
+  return [[blockToOpenURL copy] autorelease];
+}
+
+}  // namespace ios_internal_settings