Allow WebUI Tests to use preLoad in HtmlDialogUI.

chrome/test/data/webui/async_gen.cc

+// Copyright (c) 2011 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/test/data/webui/async_gen.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/values.h"
+
+WebUIBrowserAsyncGenTest::WebUIBrowserAsyncGenTest() {}
+
+WebUIBrowserAsyncGenTest::~WebUIBrowserAsyncGenTest() {}
+
+WebUIBrowserAsyncGenTest::AsyncWebUIMessageHandler::
+    AsyncWebUIMessageHandler() {}
+
+WebUIBrowserAsyncGenTest::AsyncWebUIMessageHandler::
+    ~AsyncWebUIMessageHandler() {}
+
+void WebUIBrowserAsyncGenTest::AsyncWebUIMessageHandler::HandleCallJS(
+    const base::ListValue* list_value) {
+  std::string call_js;
+  ASSERT_TRUE(list_value->GetString(0, &call_js));
+  web_ui_->CallJavascriptFunction(call_js);
+}
+
+void WebUIBrowserAsyncGenTest::AsyncWebUIMessageHandler::RegisterMessages() {
+  web_ui_->RegisterMessageCallback(
+      "callJS", base::Bind(&AsyncWebUIMessageHandler::HandleCallJS,
+                           base::Unretained(this)));
+  web_ui_->RegisterMessageCallback(
+      "tearDown", base::Bind(&AsyncWebUIMessageHandler::HandleTearDown,
+                             base::Unretained(this)));
+}