Add an extensions keep-alive client.

extensions/renderer/dispatcher.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/dispatcher.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 556 matching lines @@
   resources.push_back(
       std::make_pair(mojo::kConnectionModuleName, IDR_MOJO_CONNECTION_JS));
   resources.push_back(
       std::make_pair(mojo::kConnectorModuleName, IDR_MOJO_CONNECTOR_JS));
   resources.push_back(
       std::make_pair(mojo::kRouterModuleName, IDR_MOJO_ROUTER_JS));
   resources.push_back(
       std::make_pair(mojo::kUnicodeModuleName, IDR_MOJO_UNICODE_JS));
   resources.push_back(
       std::make_pair(mojo::kValidatorModuleName, IDR_MOJO_VALIDATOR_JS));
+  resources.push_back(std::make_pair("keep_alive", IDR_KEEP_ALIVE_JS));
+  resources.push_back(std::make_pair("extensions/common/mojo/keep_alive.mojom",
+                                     IDR_KEEP_ALIVE_MOJOM_JS));
 
   // Custom bindings.
   resources.push_back(
       std::make_pair("app.runtime", IDR_APP_RUNTIME_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("app.window", IDR_APP_WINDOW_CUSTOM_BINDINGS_JS));
   resources.push_back(
       std::make_pair("declarativeWebRequest",
                      IDR_DECLARATIVE_WEBREQUEST_CUSTOM_BINDINGS_JS));
   resources.push_back(
@@ skipping 803 matching lines @@
     return v8::Handle<v8::Object>();
 
   if (bind_name)
     *bind_name = split.back();
 
   return bind_object.IsEmpty() ? AsObjectOrEmpty(GetOrCreateChrome(context))
                                : bind_object;
 }
 
 }  // namespace extensions