Upstream Chrome on iOS source code [9/11].

ios/chrome/browser/ui/toolbar/toolbar_model_delegate_ios.h

+// 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.
+
+#ifndef IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_DELEGATE_IOS_H_
+#define IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_DELEGATE_IOS_H_
+
+#include "base/mac/scoped_nsobject.h"
+#include "base/macros.h"
+#include "components/toolbar/toolbar_model_delegate.h"
+
+@class Tab;
+@class TabModel;
+
+namespace web {
+class NavigationItem;
+}
+
+// Implementation of ToolbarModelDelegate which uses an instance of
+// TabModel in order to fulfil its duties.
+class ToolbarModelDelegateIOS : public ToolbarModelDelegate {
+ public:
+  explicit ToolbarModelDelegateIOS(TabModel* tab_model);
+  ~ToolbarModelDelegateIOS() override;
+
+  // Sets the |tab_model_| with provided values.
+  void SetTabModel(TabModel* tab_model);
+
+  // Returns the current tab.
+  Tab* GetCurrentTab() const;
+
+ private:
+  // Helper method to extract the NavigationItem from which the states are
+  // retrieved. If this returns null (which can happens during initialization),
+  // default values are used.
+  web::NavigationItem* GetNavigationItem() const;
+
+  // ToolbarModelDelegate implementation:
+  base::string16 FormattedStringWithEquivalentMeaning(
+      const GURL& url,
+      const base::string16& formatted_url) const override;
+  bool GetURL(GURL* url) const override;
+  bool ShouldDisplayURL() const override;
+  SecurityLevel GetSecurityLevel() const override;
+  scoped_refptr<net::X509Certificate> GetCertificate() const override;
+  bool FailsMalwareCheck() const override;
+
+  base::scoped_nsobject<TabModel> tab_model_;
+
+  DISALLOW_COPY_AND_ASSIGN(ToolbarModelDelegateIOS);
+};
+
+#endif  // IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_DELEGATE_IOS_H_