Make all content scripts from an extension run in the same

chrome/renderer/render_view.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/renderer/render_view.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 3576 matching lines @@
   if (!main_frame) {
     Send(new ViewMsg_ExecuteCodeFinished(routing_id_, request_id, false));
     return;
   }
 
   if (is_js_code) {
     std::vector<WebScriptSource> sources;
     sources.push_back(
         WebScriptSource(WebString::fromUTF8(code_string)));
     UserScriptSlave::InsertInitExtensionCode(&sources, extension_id);
-    main_frame->executeScriptInNewWorld(&sources.front(), sources.size(),
-                                        EXTENSION_GROUP_CONTENT_SCRIPTS);
+    main_frame->executeScriptInIsolatedWorld(
+        UserScriptSlave::GetIsolatedWorldId(extension_id),
+        &sources.front(), sources.size(), EXTENSION_GROUP_CONTENT_SCRIPTS);
   } else {
     main_frame->insertStyleText(WebString::fromUTF8(code_string), WebString());
   }
 
   Send(new ViewMsg_ExecuteCodeFinished(routing_id_, request_id, true));
 }
 
 void RenderView::DidHandleKeyEvent() {
   edit_commands_.clear();
 }
@@ skipping 15 matching lines @@
       new PluginMsg_SignalModalDialogEvent(host_window_));
 
   message->EnableMessagePumping();  // Runs a nested message loop.
   bool rv = Send(message);
 
   PluginChannelHost::Broadcast(
       new PluginMsg_ResetModalDialogEvent(host_window_));
 
   return rv;
 }