[iOS] Upstream definition of ProceduralBlockWithURL

BUG=429756

Review URL: https://codereview.chromium.org/1107583002

Cr-Commit-Position: refs/heads/master@{#326763}

ios/chrome/browser/procedural_block_types.h

+// Copyright 2014 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.
+
+#ifndef IOS_CHROME_BROWSER_PROCEDURAL_BLOCK_TYPES_H_
+#define IOS_CHROME_BROWSER_PROCEDURAL_BLOCK_TYPES_H_
+
+class GURL;
+
+// A generic procedural block type that takes a |GURL| and returns nothing.
+typedef void (^ProceduralBlockWithURL)(const GURL&);
+
+#endif  // IOS_CHROME_BROWSER_PROCEDURAL_BLOCK_TYPES_H_

ios/chrome/ios_chrome.gyp

@@ -156,6 +156,7 @@
         'browser/pref_names.h',
         'browser/prefs/pref_observer_bridge.h',
         'browser/prefs/pref_observer_bridge.mm',
+        'browser/procedural_block_types.h',
         'browser/snapshots/snapshot_cache.h',
         'browser/snapshots/snapshot_cache.mm',
         'browser/snapshots/snapshot_manager.h',