Eliminate ApiResourceEventNotifier.

chrome/browser/extensions/api/api_resource.h

Index: chrome/browser/extensions/api/api_resource.h
diff --git a/chrome/browser/extensions/api/api_resource.h b/chrome/browser/extensions/api/api_resource.h
index 0507377ac64bd432303885d980b96f63670d616f..13361dc6cf5754c045726e4c95e2719ecd8e478f 100644
--- a/chrome/browser/extensions/api/api_resource.h
+++ b/chrome/browser/extensions/api/api_resource.h
@@ -11,8 +11,6 @@
 
 namespace extensions {
 
-class ApiResourceEventNotifier;
-
 // An ApiResource represents something that an extension API manages, such as a
 // socket or a serial-port connection. Typically, an ApiResourceManager will
 // control the lifetime of all ApiResources of a specific derived type.
@@ -25,20 +23,12 @@ class ApiResource {
   }
 
  protected:
-  ApiResource(const std::string& owner_extension_id,
-              ApiResourceEventNotifier* event_notifier);
+  explicit ApiResource(const std::string& owner_extension_id);
 
  private:
-  // The extension that owns this resource. This could be derived from
-  // event_notifier, but that's a little too cute; to make future code
-  // maintenance easier, we'll require callers to explicitly specify the owner,
-  // and for now we'll assert that the owner implied by the event_notifier is
-  // consistent with the explicit one.
+  // The extension that owns this resource.
   const std::string& owner_extension_id_;
 
-  // The object that lets this resource report events to the owner application.
-  scoped_refptr<ApiResourceEventNotifier> event_notifier_;
-
   DISALLOW_COPY_AND_ASSIGN(ApiResource);
 };