[Extensions] Expand bindings access checks

chrome/renderer/extensions/tabs_custom_bindings.cc

 // Copyright (c) 2012 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/extensions/tabs_custom_bindings.h"
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/bind.h"
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/renderer/script_context.h"
 #include "v8/include/v8.h"
 
 namespace extensions {
 
 TabsCustomBindings::TabsCustomBindings(ScriptContext* context)
     : ObjectBackedNativeHandler(context) {
-  RouteFunction("OpenChannelToTab",
-      base::Bind(&TabsCustomBindings::OpenChannelToTab,
-                 base::Unretained(this)));
+  RouteFunction("OpenChannelToTab", "tabs",
+                base::Bind(&TabsCustomBindings::OpenChannelToTab,
+                           base::Unretained(this)));
 }
 
 void TabsCustomBindings::OpenChannelToTab(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   content::RenderFrame* render_frame = context()->GetRenderFrame();
   if (!render_frame)
     return;
 
   // tabs_custom_bindings.js unwraps arguments to tabs.connect/sendMessage and
   // passes them to OpenChannelToTab, in the following order:
@@ skipping 14 matching lines @@
   std::string extension_id = *v8::String::Utf8Value(args[2]);
   std::string channel_name = *v8::String::Utf8Value(args[3]);
   int port_id = -1;
   render_frame->Send(new ExtensionHostMsg_OpenChannelToTab(
       render_frame->GetRoutingID(), info, extension_id, channel_name,
       &port_id));
   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
 }
 
 }  // namespace extensions