Changed the extension.connect() API not to broadcast to all tabs. Added a

chrome/browser/automation/automation_provider.cc

 // Copyright (c) 2006-2009 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/automation/automation_provider.h"
 
 #include "app/l10n_util.h"
 #include "app/message_box_flags.h"
 #include "base/file_version_info.h"
 #include "base/json_reader.h"
@@ skipping 2712 matching lines @@
     LOG(WARNING) << "No browser event name specified through automation";
     return false;
   }
 
   std::string json_args;
   if (!args->GetString(1, &json_args)) {
     LOG(WARNING) << "No browser event args specified through automation";
     return false;
   }
 
-  ExtensionMessageService::GetInstance(profile()->GetRequestContext())->
-      DispatchEventToRenderers(event_name.c_str(), json_args);
+  if (profile()->GetExtensionMessageService()) {
+    profile()->GetExtensionMessageService()->
+        DispatchEventToRenderers(event_name.c_str(), json_args);
+  }
 
   return true;
 }
 #endif  // defined(OS_WIN) || defined(OS_LINUX)
 
 TabContents* AutomationProvider::GetTabContentsForHandle(
     int handle, NavigationController** tab) {
   if (tab_tracker_->ContainsHandle(handle)) {
     NavigationController* nav_controller = tab_tracker_->GetResource(handle);
     if (tab)
@@ skipping 283 matching lines @@
         if (container) {
           *count = static_cast<int>(container->GetBlockedPopupCount());
         } else {
           // If we don't have a container, we don't have any blocked popups to
           // contain!
           *count = 0;
         }
       }
   }
 }