[Extensions] Expand bindings access checks

extensions/renderer/lazy_background_page_native_handler.cc

 // Copyright 2014 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 "extensions/renderer/lazy_background_page_native_handler.h"
 
 #include "base/bind.h"
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/renderer/extension_frame_helper.h"
 #include "extensions/renderer/script_context.h"
 
 namespace extensions {
 
 LazyBackgroundPageNativeHandler::LazyBackgroundPageNativeHandler(
     ScriptContext* context)
     : ObjectBackedNativeHandler(context) {
   RouteFunction(
-      "IncrementKeepaliveCount",
+      "IncrementKeepaliveCount", "tts",
       base::Bind(&LazyBackgroundPageNativeHandler::IncrementKeepaliveCount,
                  base::Unretained(this)));
   RouteFunction(
-      "DecrementKeepaliveCount",
+      "DecrementKeepaliveCount", "tts",
       base::Bind(&LazyBackgroundPageNativeHandler::DecrementKeepaliveCount,
                  base::Unretained(this)));
 }
 
 void LazyBackgroundPageNativeHandler::IncrementKeepaliveCount(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (context() && ExtensionFrameHelper::IsContextForEventPage(context())) {
     content::RenderFrame* render_frame = context()->GetRenderFrame();
     render_frame->Send(new ExtensionHostMsg_IncrementLazyKeepaliveCount(
         render_frame->GetRoutingID()));
   }
 }
 
 void LazyBackgroundPageNativeHandler::DecrementKeepaliveCount(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (context() && ExtensionFrameHelper::IsContextForEventPage(context())) {
     content::RenderFrame* render_frame = context()->GetRenderFrame();
     render_frame->Send(new ExtensionHostMsg_DecrementLazyKeepaliveCount(
         render_frame->GetRoutingID()));
   }
 }
 
 }  // namespace extensions