Upstream Chrome on iOS source code [6/11].

ios/chrome/browser/ui/omnibox/page_info_model_observer.h

Index: ios/chrome/browser/ui/omnibox/page_info_model_observer.h
diff --git a/ios/chrome/browser/ui/omnibox/page_info_model_observer.h b/ios/chrome/browser/ui/omnibox/page_info_model_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..edfa1565b4fff89ba062902028833b4e9d9c813b
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+++ b/ios/chrome/browser/ui/omnibox/page_info_model_observer.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2011 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_UI_OMNIBOX_PAGE_INFO_MODEL_OBSERVER_H_
+#define IOS_CHROME_BROWSER_UI_OMNIBOX_PAGE_INFO_MODEL_OBSERVER_H_
+
+// TODO(crbug.com/227827) Merge 178763: PageInfoModel has been removed in
+// upstream; check if we should use PageInfoModel.
+// This interface should be implemented by classes interested in getting
+// notifications from PageInfoModel.
+class PageInfoModelObserver {
+ public:
+  virtual ~PageInfoModelObserver() {}
+
+  virtual void OnPageInfoModelChanged() = 0;
+};
+
+#endif  // IOS_CHROME_BROWSER_UI_OMNIBOX_PAGE_INFO_MODEL_OBSERVER_H_