Filtered events.

chrome/browser/extensions/extension_prefs.h

Index: chrome/browser/extensions/extension_prefs.h
diff --git a/chrome/browser/extensions/extension_prefs.h b/chrome/browser/extensions/extension_prefs.h
index 92ca408b3870c73b9e4093636080e3419eadf6ba..8aa79c825361395e5ce8c67b70310103b128d73a 100644
--- a/chrome/browser/extensions/extension_prefs.h
+++ b/chrome/browser/extensions/extension_prefs.h
@@ -275,6 +275,20 @@ class ExtensionPrefs : public extensions::ContentSettingsStore::Observer,
   void SetRegisteredEvents(const std::string& extension_id,
                            const std::set<std::string>& events);
 
+  // Adds a filter to an event.

[Aaron Boodman, 2012/06/15 07:34:51]

It's matt's new storage thingy ready for you to use yet?

[Matt Perry, 2012/06/15 18:59:34]

It's ready in asynchronous form. Do we want to move events+filters to the
storage too? That means we'll have to block startup on loading the event
registrations out of the database.

[Aaron Boodman, 2012/06/15 22:37:31]

I think leaving this stuff in Preferences is kinda just as bad at this point.

I lean toward putting all our new state in level DB and blocking things that
need to be blocked when necessary.

[koz (OOO until 15th September), 2012/06/18 23:27:27]

Ok, I'll work on making that change in this patch then.

[Matt Perry, 2012/06/18 23:35:46]

It's more work than you might think. I would hold off for a future patch.

I'm not entirely convinced moving to level DB is a good idea. If something needs
to be read while blocking startup, it doesn't buy us anything to move it out of
Preferences (which blocks startup). That just adds 1 more file that blocks
startup.

+  void AddFilterToEvent(const std::string& event_name,
+                        const std::string& extension_id,
+                        const DictionaryValue* filter);
+
+  // Removes a filter from an event.
+  void RemoveFilterFromEvent(const std::string& event_name,
+                             const std::string& extension_id,
+                             const DictionaryValue* filter);
+
+  // Returns the dictionary of event filters that the given extension has
+  // registered.
+  const DictionaryValue* GetFilteredEvents(const std::string& extension_id);
+
   // Controls a list of alarms for this extension, including the next time they
   // should run.
   std::vector<extensions::AlarmPref> GetRegisteredAlarms(