createWindow api call.

chrome/browser/extensions/extension_function.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_
 
 #include <string>
 
 #include "base/values.h"
@@ skipping 53 matching lines @@
   scoped_ptr<Value> result_;
 
   // Any detailed error from the API. This should be populated by the derived
   // class before Run() returns.
   std::string error_;
 
   // Any class that gets a malformed message should set this to true before
   // returning.  The calling renderer process will be killed.
   bool bad_message_;
 
+  // The dispatcher that will service this extension function call.
+  ExtensionFunctionDispatcher* dispatcher_;
+
  private:
-  ExtensionFunctionDispatcher* dispatcher_;
+  // Id of js function to callback upon completion. -1 represents no callback.
   int callback_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionFunction);
 };
 
 
 // A SyncExtensionFunction is an ExtensionFunction that runs synchronously
 // *relative to the browser's UI thread*. Note that this has nothing to do with
 // running synchronously relative to the extension process. From the extension
 // process's point of view, the function is still asynchronous.
@@ skipping 10 matching lines @@
 
   virtual void Run() {
     SendResponse(RunImpl());
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncExtensionFunction);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_