Redoing Issue 36073011: Allowing file:/// in Instant Extended's Most Visited links.

chrome/browser/ui/webui/ntp/ntp_user_data_logger.h

Index: chrome/browser/ui/webui/ntp/ntp_user_data_logger.h
diff --git a/chrome/browser/ui/webui/ntp/ntp_user_data_logger.h b/chrome/browser/ui/webui/ntp/ntp_user_data_logger.h
index fc0923a522a84be1fb784d2d57c65a7d990b4979..718fa1fa03c533a2de4dcfd747cf532423e13e57 100644
--- a/chrome/browser/ui/webui/ntp/ntp_user_data_logger.h
+++ b/chrome/browser/ui/webui/ntp/ntp_user_data_logger.h
@@ -5,6 +5,9 @@
 #ifndef CHROME_BROWSER_UI_WEBUI_NTP_NTP_USER_DATA_LOGGER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_NTP_USER_DATA_LOGGER_H_
 
+#include <string>
+
+#include "base/strings/string16.h"
 #include "chrome/common/ntp_logging_events.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
@@ -23,6 +26,16 @@ class NTPUserDataLogger
   static NTPUserDataLogger* GetOrCreateFromWebContents(
       content::WebContents* content);
 
+  // Returns the name of the histogram that should be logged for an impression
+  // of a specified Most Visited |provider|.
+  static std::string GetMostVisitedImpressionHistogramNameForProvider(
+      const std::string& provider);
+
+  // Returns the name of the histogram that should be logged for a navigation
+  // to a specified Most Visited |provider|.
+  static std::string GetMostVisitedNavigationHistogramNameForProvider(
+      const std::string& provider);
+
   // Logs a number of statistics regarding the NTP. Called when an NTP tab is
   // about to be deactivated (be it by switching tabs, losing focus or closing
   // the tab/shutting down Chrome), or when the user navigates to a URL.
@@ -33,7 +46,10 @@ class NTPUserDataLogger
   void LogEvent(NTPLoggingEventType event);
 
   // Logs an impression on one of the Most Visited tiles by a given provider.
-  void LogImpression(int position, const base::string16& provider);
+  void LogMostVisitedImpression(int position, const base::string16& provider);
+
+  // Logs a navigation on one of the Most Visited tiles by a given provider.
+  void LogMostVisitedNavigation(int position, const base::string16& provider);
 
   // content::WebContentsObserver override
   virtual void NavigationEntryCommitted(