Remove deprecated extension EventRouter APIs.

chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc

Index: chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc
diff --git a/chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc b/chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc
index 90db58f23c0cde1517da34dfda51383ab9217f6a..12265c7a483644738c6f873876f4fe3fd730fe54 100644
--- a/chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc
+++ b/chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc
@@ -281,10 +281,11 @@ void OffscreenTab::Observe(int type,
   // The event router only dispatches the event to renderers listening for the
   // event.
   Profile* profile = parent_tab_->tab_contents()->profile();
+  scoped_ptr<extensions::Event> event(new extensions::Event(
+      events::kOnOffscreenTabUpdated, args.Pass()));
+  event->restrict_to_profile = profile;
   extensions::ExtensionSystem::Get(profile)->event_router()->
-      DispatchEventToRenderers(
-          events::kOnOffscreenTabUpdated, args.Pass(), profile, GURL(),
-          extensions::EventFilteringInfo());
+      BroadcastEvent(event.Pass());
 }
 
 ParentTab::ParentTab() : tab_contents_(NULL) {}