Revert 221619 "Initial chrome.mdns API."

trunk/src/extensions/common/event_matcher.h

Index: trunk/src/extensions/common/event_matcher.h
===================================================================
--- trunk/src/extensions/common/event_matcher.h	(revision 221667)
+++ trunk/src/extensions/common/event_matcher.h	(working copy)
@@ -12,8 +12,6 @@
 
 class EventFilteringInfo;
 
-extern const char kEventFilterServiceTypeKey[];
-
 // Matches EventFilteringInfos against a set of criteria. This is intended to
 // be used by EventFilter which performs efficient URL matching across
 // potentially many EventMatchers itself. This is why this class only exposes
@@ -31,8 +29,6 @@
   int GetURLFilterCount() const;
   bool GetURLFilter(int i, base::DictionaryValue** url_filter_out);
 
-  std::string GetServiceTypeFilter() const;
-
   int HasURLFilters() const;
 
   int GetInstanceID() const;