Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/extensions/webstore_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/webstore_bindings.h"
 
 #include "base/string_util.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/renderer/extensions/chrome_v8_context.h"
@@ skipping 195 matching lines @@
   IPC_END_MESSAGE_MAP()
   return true;
 }
 
 void WebstoreBindings::OnInlineWebstoreInstallResponse(
     int install_id,
     bool success,
     const std::string& error) {
   v8::HandleScope handle_scope;
   v8::Context::Scope context_scope(context_->v8_context());
-  v8::Handle<v8::Value> argv[3];
-  argv[0] = v8::Integer::New(install_id);
-  argv[1] = v8::Boolean::New(success);
-  argv[2] = v8::String::New(error.c_str());
-  context_->CallChromeHiddenMethod("webstore.onInstallResponse",
-                                   arraysize(argv), argv, NULL);
+  v8::Handle<v8::Value> argv[] = {
+    v8::Integer::New(install_id),
+    v8::Boolean::New(success),
+    v8::String::New(error.c_str())
+  };
+  context_->module_system()->CallModuleMethod(
+      "webstore", "onInstallResponse", arraysize(argv), argv);
 }
 
 }  // namespace extensions