Audit the last time the media stream content settings have been used.

chrome/browser/content_settings/host_content_settings_map.h

 // Copyright (c) 2012 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.
 
 // Maps hostnames to custom content settings.  Written on the UI thread and read
 // on any thread.  One instance per profile.
 
 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 
@@ skipping 200 matching lines @@
       const GURL& secondary_url,
       ContentSettingsType content_type,
       const std::string& resource_identifier);
 
   // Sets the last time that a given content type has been used for the pattern
   // which matches the URLs to the current time.
   void UpdateLastUsage(const GURL& primary_url,
                        const GURL& secondary_url,
                        ContentSettingsType content_type);
 
+  // Sets the last time that a given content type has been used for a pattern
+  // pair to the current time.
+  void UpdateLastUsageByPattern(const ContentSettingsPattern& primary_pattern,
+                                const ContentSettingsPattern& secondary_pattern,
+                                ContentSettingsType content_type);
+
   // Returns the last time the pattern that matches the URL has requested
   // permission for the |content_type| setting.
   base::Time GetLastUsage(const GURL& primary_url,
                           const GURL& secondary_url,
                           ContentSettingsType content_type);
 
   // Returns the last time the pattern has requested permission for the
   // |content_type| setting.
   base::Time GetLastUsageByPattern(
       const ContentSettingsPattern& primary_pattern,
@@ skipping 33 matching lines @@
       const std::string& resource_identifier,
       ContentSettingsForOneType* settings,
       bool incognito) const;
 
   // Call UsedContentSettingsProviders() whenever you access
   // content_settings_providers_ (apart from initialization and
   // teardown), so that we can DCHECK in RegisterExtensionService that
   // it is not being called too late.
   void UsedContentSettingsProviders() const;
 
-  // Convenience method for updating the last usage of a content type for a
-  // pattern.
-  void UpdateLastUsageByPattern(const ContentSettingsPattern& primary_pattern,
-                                const ContentSettingsPattern& secondary_pattern,
-                                ContentSettingsType content_type);
-
   content_settings::PrefProvider* GetPrefProvider();
 
 #ifndef NDEBUG
   // This starts as the thread ID of the thread that constructs this
   // object, and remains until used by a different thread, at which
   // point it is set to base::kInvalidThreadId. This allows us to
   // DCHECK on unsafe usage of content_settings_providers_ (they
   // should be set up on a single thread, after which they are
   // immutable).
   mutable base::PlatformThreadId used_from_thread_id_;
 #endif
 
   // Weak; owned by the Profile.
   PrefService* prefs_;
 
   // Whether this settings map is for an OTR session.
   bool is_off_the_record_;
 
   // Content setting providers. This is only modified at construction
   // time and by RegisterExtensionService, both of which should happen
   // before any other uses of it.
   ProviderMap content_settings_providers_;
 
   DISALLOW_COPY_AND_ASSIGN(HostContentSettingsMap);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_