Lazy-creates BluetoothAdapter in ExtensionBluetoothEventRouter (EBEE).

chrome/browser/extensions/event_router.cc

Index: chrome/browser/extensions/event_router.cc
diff --git a/chrome/browser/extensions/event_router.cc b/chrome/browser/extensions/event_router.cc
index b6683a6f4c5df142df87e9a811be43e2215f674f..a36adbcfc030b23365567657a9504d9e00076c03 100644
--- a/chrome/browser/extensions/event_router.cc
+++ b/chrome/browser/extensions/event_router.cc
@@ -186,6 +186,9 @@ void EventRouter::OnListenerAdded(const EventListener* listener) {
 
   if (SystemInfoEventRouter::IsSystemInfoEvent(event_name))
     SystemInfoEventRouter::GetInstance()->AddEventListener(event_name);
+  ExtensionService* service =
+      ExtensionSystem::Get(profile_)->extension_service();
+  service->NotifyExtensionEventRoutersOnListenerAdded(event_name);

[bryeung, 2012/11/08 19:24:02]

I don't think this is the right way of doing this.  I'm going to start an email
thread with mpcomplete@ to try and figure out what the right way is.

[youngki, 2012/11/09 05:12:52]

I will wait for Yoyo's CL to be landed and I will make the change as discussed
in the email thread.

 }
 
 void EventRouter::OnListenerRemoved(const EventListener* listener) {
@@ -214,6 +217,9 @@ void EventRouter::OnListenerRemoved(const EventListener* listener) {
 
   if (SystemInfoEventRouter::IsSystemInfoEvent(event_name))
     SystemInfoEventRouter::GetInstance()->RemoveEventListener(event_name);
+  ExtensionService* service =
+      ExtensionSystem::Get(profile_)->extension_service();
+  service->NotifyExtensionEventRoutersOnListenerRemoved(event_name);
 }
 
 void EventRouter::AddLazyEventListener(const std::string& event_name,