Add time from navigation_start to NTP LogEvent

chrome/browser/ui/search/search_ipc_router.h

 // Copyright 2013 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_IPC_ROUTER_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_IPC_ROUTER_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 41 matching lines @@
 
     // Called when the SearchBox wants to delete a Most Visited item.
     virtual void OnDeleteMostVisitedItem(const GURL& url) = 0;
 
     // Called when the SearchBox wants to undo a Most Visited deletion.
     virtual void OnUndoMostVisitedDeletion(const GURL& url) = 0;
 
     // Called when the SearchBox wants to undo all Most Visited deletions.
     virtual void OnUndoAllMostVisitedDeletions() = 0;
 
-    // Called to signal that an event has occurred on the New Tab Page.
-    virtual void OnLogEvent(NTPLoggingEventType event) = 0;
+    // Called to signal that an event has occurred on the New Tab Page at a
+    // particular time since navigation start.
+    virtual void OnLogEvent(NTPLoggingEventType event, int64 time) = 0;
 
     // Called to log an impression from a given provider on the New Tab Page.
     virtual void OnLogMostVisitedImpression(int position,
                                             const base::string16& provider) = 0;
 
     // Called to log a navigation from a given provider on the New Tab Page.
     virtual void OnLogMostVisitedNavigation(int position,
                                             const base::string16& provider) = 0;
 
     // Called when the page wants to paste the |text| (or the clipboard contents
@@ skipping 125 matching lines @@
   void OnVoiceSearchSupportDetermined(int page_id,
                                       bool supports_voice_search) const;
   void OnFocusOmnibox(int page_id, OmniboxFocusState state) const;
   void OnSearchBoxNavigate(int page_id,
                            const GURL& url,
                            WindowOpenDisposition disposition,
                            bool is_most_visited_item_url) const;
   void OnDeleteMostVisitedItem(int page_seq_no, const GURL& url) const;
   void OnUndoMostVisitedDeletion(int page_seq_no, const GURL& url) const;
   void OnUndoAllMostVisitedDeletions(int page_seq_no) const;
-  void OnLogEvent(int page_seq_no, NTPLoggingEventType event) const;
+  void OnLogEvent(int page_seq_no, NTPLoggingEventType event, int64 time) const;
   void OnLogMostVisitedImpression(int page_seq_no,
                                   int position,
                                   const base::string16& provider) const;
   void OnLogMostVisitedNavigation(int page_seq_no,
                                   int position,
                                   const base::string16& provider) const;
   void OnPasteAndOpenDropDown(int page_seq_no,
                               const base::string16& text) const;
   void OnChromeIdentityCheck(int page_seq_no,
                              const base::string16& identity) const;
@@ skipping 18 matching lines @@
   // SearchIPCRouter to ensure that delayed IPC replies are ignored.
   int commit_counter_;
 
   // Set to true, when the tab corresponding to |this| instance is active.
   bool is_active_tab_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchIPCRouter);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_IPC_ROUTER_H_