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diff --git a/ceee/ie/plugin/bho/webnavigation_events_funnel.h b/ceee/ie/plugin/bho/webnavigation_events_funnel.h
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+++ b/ceee/ie/plugin/bho/webnavigation_events_funnel.h
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+// Copyright (c) 2010 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.
+//
+// Funnel of Chrome Extension Web Navigation Events.
+
+#ifndef CEEE_IE_PLUGIN_BHO_WEBNAVIGATION_EVENTS_FUNNEL_H_
+#define CEEE_IE_PLUGIN_BHO_WEBNAVIGATION_EVENTS_FUNNEL_H_
+#include <atlcomcli.h>
+
+#include "base/time.h"
+#include "ceee/ie/plugin/bho/events_funnel.h"
+
+#include "toolband.h"  // NOLINT
+
+// Implements a set of methods to send web navigation related events to the
+// Broker.
+class WebNavigationEventsFunnel : public EventsFunnel {
+ public:
+  WebNavigationEventsFunnel() : EventsFunnel(false) {}
+
+  // Sends the webNavigation.onBeforeNavigate event to the Broker.
+  // @param tab_handle The window handle of the tab in which the navigation is
+  //        about to occur.
+  // @param url The URL of the navigation.
+  // @param frame_id 0 indicates the navigation happens in the tab content
+  //        window; positive value indicates navigation in a subframe.
+  // @param request_id The ID of the request to retrieve the document of this
+  //        navigation.
+  // @param time_stamp The time when the browser was about to start the
+  //        navigation.
+  virtual HRESULT OnBeforeNavigate(CeeeWindowHandle tab_handle,
+                                   BSTR url,
+                                   int frame_id,
+                                   int request_id,
+                                   const base::Time& time_stamp);
+
+  // Sends the webNavigation.onBeforeRetarget event to the Broker.
+  // @param source_tab_handle The window handle of the tab in which the
+  //        navigation is triggered.
+  // @param source_url The URL of the document that is opening the new window.
+  // @param target_url The URL to be opened in the new window.
+  // @param time_stamp The time when the browser was about to create a new view.
+  virtual HRESULT OnBeforeRetarget(CeeeWindowHandle source_tab_handle,
+                                   BSTR source_url,
+                                   BSTR target_url,
+                                   const base::Time& time_stamp);
+
+  // Sends the webNavigation.onCommitted event to the Broker.
+  // @param tab_handle The window handle of the tab in which the navigation
+  //        occurs.
+  // @param url The URL of the navigation.
+  // @param frame_id 0 indicates the navigation happens in the tab content
+  //        window; positive value indicates navigation in a subframe.
+  // @param transition_type Cause of the navigation.
+  // @param transition_qualifiers Zero or more transition qualifiers delimited
+  //        by "|".
+  // @param time_stamp The time when the navigation was committed.
+  virtual HRESULT OnCommitted(CeeeWindowHandle tab_handle,
+                              BSTR url,
+                              int frame_id,
+                              const char* transition_type,
+                              const char* transition_qualifiers,
+                              const base::Time& time_stamp);
+
+  // Sends the webNavigation.onCompleted event to the Broker.
+  // @param tab_handle The window handle of the tab in which the navigation
+  //        occurs.
+  // @param url The URL of the navigation.
+  // @param frame_id 0 indicates the navigation happens in the tab content
+  //        window; positive value indicates navigation in a subframe.
+  // @param time_stamp The time when the document finished loading.
+  virtual HRESULT OnCompleted(CeeeWindowHandle tab_handle,
+                              BSTR url,
+                              int frame_id,
+                              const base::Time& time_stamp);
+
+  // Sends the webNavigation.onDOMContentLoaded event to the Broker.
+  // @param tab_handle The window handle of the tab in which the navigation
+  //        occurs.
+  // @param url The URL of the navigation.
+  // @param frame_id 0 indicates the navigation happens in the tab content
+  //        window; positive value indicates navigation in a subframe.
+  // @param time_stamp The time when the page's DOM was fully constructed.
+  virtual HRESULT OnDOMContentLoaded(CeeeWindowHandle tab_handle,
+                                     BSTR url,
+                                     int frame_id,
+                                     const base::Time& time_stamp);
+
+  // Sends the webNavigation.onErrorOccurred event to the Broker.
+  // @param tab_handle The window handle of the tab in which the navigation
+  //        occurs.
+  // @param url The URL of the navigation.
+  // @param frame_id 0 indicates the navigation happens in the tab content
+  //        window; positive value indicates navigation in a subframe.
+  // @param error The error description.
+  // @param time_stamp The time when the error occurred.
+  virtual HRESULT OnErrorOccurred(CeeeWindowHandle tab_handle,
+                                  BSTR url,
+                                  int frame_id,
+                                  BSTR error,
+                                  const base::Time& time_stamp);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebNavigationEventsFunnel);
+};
+
+#endif  // CEEE_IE_PLUGIN_BHO_WEBNAVIGATION_EVENTS_FUNNEL_H_