Move WebUIMessageHandler to its own file in the public directory and put it in the content namesp...

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"
+#include "content/browser/webui/web_ui.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)));
 }