Update browser actions api to be like new design doc.

chrome/browser/extensions/extension_browser_event_router.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_browser_event_router.h"
 
 #include "base/json_writer.h"
 #include "base/values.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/profile.h"
@@ skipping 357 matching lines @@
   args.Append(data);
 
   std::string json_args;
   JSONWriter::Write(&args, false, &json_args);
 
   std::string event_name = std::string("pageAction/") + extension_id;
   DispatchEvent(profile, event_name.c_str(), json_args);
 }
 
 void ExtensionBrowserEventRouter::BrowserActionExecuted(
-    Profile* profile, const std::string& extension_id, int window_id) {
+    Profile* profile, const std::string& extension_id, Browser* browser) {
+  TabContents* tab_contents = NULL;
+  int tab_id = 0;
+  if (!ExtensionTabUtil::GetDefaultTab(browser, &tab_contents, &tab_id))
+    return;
+
   ListValue args;
-  args.Append(Value::CreateIntegerValue(window_id));
-
+  args.Append(ExtensionTabUtil::CreateTabValue(tab_contents));
   std::string json_args;
   JSONWriter::Write(&args, false, &json_args);
 
   std::string event_name = std::string("browserAction/") + extension_id;
   DispatchEvent(profile, event_name.c_str(), json_args);
 }