Introducing the activityLogPrivate.deleteActivities() API call.

chrome/browser/extensions/activity_log/activity_log.h

Index: chrome/browser/extensions/activity_log/activity_log.h
diff --git a/chrome/browser/extensions/activity_log/activity_log.h b/chrome/browser/extensions/activity_log/activity_log.h
index b913ee3bffbf680f08e9221c0d5dda3e63c7fddf..84ffd397f6cf95a39659e5a262e7176a0f5189d1 100644
--- a/chrome/browser/extensions/activity_log/activity_log.h
+++ b/chrome/browser/extensions/activity_log/activity_log.h
@@ -112,6 +112,10 @@ class ActivityLog : public BrowserContextKeyedService,
 
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
+  // Remove actions from the activity log database which IDs specified in the
+  // action_ids array.
+  void RemoveActions(const std::vector<int64>& action_ids);
+
   // Clean up URLs from the activity log database.
   // If restrict_urls is empty then all URLs in the activity log database are
   // removed, otherwise only those in restrict_urls are removed.