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diff --git a/content/public/browser/navigation_details.h b/content/public/browser/navigation_details.h
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+// 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 CONTENT_PUBLIC_BROWSER_NAVIGATION_DETAILS_H_
+#define CONTENT_PUBLIC_BROWSER_NAVIGATION_DETAILS_H_
+#pragma once
+
+#include <string>
+#include "content/common/content_export.h"
+#include "content/public/browser/navigation_type.h"
+#include "googleurl/src/gurl.h"
+
+class NavigationEntry;
+class TabContents;
+
+namespace content {
+
+// Provides the details for a NOTIFY_NAV_ENTRY_COMMITTED notification.
+// TODO(brettw) this mostly duplicates ProvisionalLoadDetails, it would be
+// nice to unify these somehow.
+struct CONTENT_EXPORT LoadCommittedDetails {
+  // By default, the entry will be filled according to a new main frame
+  // navigation.
+  LoadCommittedDetails();
+
+  // The committed entry. This will be the active entry in the controller.
+  NavigationEntry* entry;
+
+  // The type of navigation that just occurred. Note that not all types of
+  // navigations in the enum are valid here, since some of them don't actually
+  // cause a "commit" and won't generate this notification.
+  content::NavigationType type;
+
+  // The index of the previously committed navigation entry. This will be -1
+  // if there are no previous entries.
+  int previous_entry_index;
+
+  // The previous URL that the user was on. This may be empty if none.
+  GURL previous_url;
+
+  // True if the committed entry has replaced the exisiting one.
+  // A non-user initiated redirect causes such replacement.
+  bool did_replace_entry;
+
+  // True if the navigation was in-page. This means that the active entry's
+  // URL and the |previous_url| are the same except for reference fragments.
+  bool is_in_page;
+
+  // True when the main frame was navigated. False means the navigation was a
+  // sub-frame.
+  bool is_main_frame;
+
+  // When the committed load is a web page from the renderer, this string
+  // specifies the security state if the page is secure.
+  // See ViewHostMsg_FrameNavigate_Params.security_info, where it comes from.
+  // Use SSLManager::DeserializeSecurityInfo to decode it.
+  std::string serialized_security_info;
+
+  // Returns whether the main frame navigated to a different page (e.g., not
+  // scrolling to a fragment inside the current page). We often need this logic
+  // for showing or hiding something.
+  bool is_navigation_to_different_page() const {
+    return is_main_frame && !is_in_page;
+  }
+
+  // The HTTP status code for this entry..
+  int http_status_code;
+};
+
+// Provides the details for a NOTIFY_NAV_ENTRY_CHANGED notification.
+struct EntryChangedDetails {
+  // The changed navigation entry after it has been updated.
+  const NavigationEntry* changed_entry;
+
+  // Indicates the current index in the back/forward list of the entry.
+  int index;
+};
+
+// Details sent for NOTIFY_NAV_LIST_PRUNED.
+struct PrunedDetails {
+  // If true, count items were removed from the front of the list, otherwise
+  // count items were removed from the back of the list.
+  bool from_front;
+
+  // Number of items removed.
+  int count;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_DETAILS_H_