Upstream Chrome on iOS source code [10/11].

ios/chrome/browser/url_opening.h

Index: ios/chrome/browser/url_opening.h
diff --git a/ios/chrome/browser/url_opening.h b/ios/chrome/browser/url_opening.h
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+// Copyright 2016 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.
+
+// ======                        New Architecture                         =====
+// =         This code is only used in the new iOS Chrome architecture.       =
+// ============================================================================
+
+#ifndef IOS_CHROME_BROWSER_URL_OPENING_H_
+#define IOS_CHROME_BROWSER_URL_OPENING_H_
+
+#import <Foundation/Foundation.h>
+
+// Protocol adopted by objects that can "open" (usually this means loading in a
+// web view) URLs.
+@protocol URLOpening
+// Opens |url|. Any kind of failure happens silently.
+- (void)openURL:(NSURL*)URL;
+@end
+
+#endif  // IOS_CHROME_BROWSER_URL_OPENING_H_