Implement SearchTabHelperDelegate.

chrome/browser/ui/search/search_tab_helper_delegate.h

Index: chrome/browser/ui/search/search_tab_helper_delegate.h
diff --git a/chrome/browser/ui/search/search_tab_helper_delegate.h b/chrome/browser/ui/search/search_tab_helper_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..723518a9824d7aa05db4bda05b8ee32badca0be1
--- /dev/null
+++ b/chrome/browser/ui/search/search_tab_helper_delegate.h
@@ -0,0 +1,45 @@
+// 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 CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_DELEGATE_H_
+#define CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_DELEGATE_H_
+
+#include <set>
+#include <string>
+
+#include "ui/base/window_open_disposition.h"
+
+namespace content {
+class WebContents;
+}
+
+class GURL;
+class OmniboxView;
+
+// Objects implement this interface to get notified about changes in the
+// SearchTabHelper and to provide necessary functionality.
+class SearchTabHelperDelegate {
+ public:
+  // Navigates the page to |url|. Usually used by the page to navigate to
+  // privileged destinations (e.g. chrome:// URLs) or to navigate to URLs that
+  // are hidden from the page using Restricted IDs (rid in the API).
+  virtual void NavigateToURL(const GURL& url,
+                             WindowOpenDisposition disposition,
+                             content::WebContents* source_contents);
+
+  // Invoked when the |web_contents| no longer supports Instant.
+  virtual void OnWebContentsInstantSupportDisabled(
+      const content::WebContents* web_contents);
+
+  // Returns the OmniboxView or NULL if not available.
+  virtual OmniboxView* GetOmniboxView();
+
+  // Creates a set containing the canonical URLs of the currently open tabs.
+  virtual void GetOpenUrls(std::set<std::string>* urls);
+
+ protected:
+  virtual ~SearchTabHelperDelegate();
+};
+
+#endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_DELEGATE_H_