Decouple bluetooth_event_router from extension_system.

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 0a2abc3fb65692fc29daf790b3b6765b24ae04e2..1eb6603b27174a717af8f570f3462f0b8c5de0ba 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -65,7 +65,6 @@ class ContentSettingsStore;
 class CrxInstaller;
 class Extension;
 class ExtensionActionStorageManager;
-class ExtensionBluetoothEventRouter;
 class ExtensionCookiesEventRouter;
 class ExtensionManagedModeEventRouter;
 class ExtensionSyncData;
@@ -538,10 +537,6 @@ class ExtensionService
     return window_event_router_.get();
   }
 
-  extensions::ExtensionBluetoothEventRouter* bluetooth_event_router() {
-    return bluetooth_event_router_.get();
-  }
-
 #if defined(OS_CHROMEOS)
   chromeos::ExtensionInputMethodEventRouter* input_method_event_router() {
     return input_method_event_router_.get();
@@ -926,8 +921,6 @@ class ExtensionService
   scoped_ptr<extensions::ExtensionManagedModeEventRouter>
       managed_mode_event_router_;
 
-  scoped_ptr<extensions::ExtensionBluetoothEventRouter> bluetooth_event_router_;
-
 #if defined(OS_CHROMEOS)
   scoped_ptr<chromeos::ExtensionInputMethodEventRouter>
       input_method_event_router_;