Revert of Refactoring button field and its type

third_party/WebKit/Source/web/tests/WebPluginContainerTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 313 matching lines @@
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("plugin_container.html"));
     TestPluginWebFrameClient pluginWebFrameClient; // Must outlive webViewHelper.
     FrameTestHelpers::WebViewHelper webViewHelper;
     WebView* webView = webViewHelper.initializeAndLoad(m_baseURL + "plugin_container.html", true, &pluginWebFrameClient);
     DCHECK(webView);
     webView->settings()->setPluginsEnabled(true);
     webView->resize(WebSize(300, 300));
     webView->updateAllLifecyclePhases();
     runPendingTasks();
 
-    auto event = FrameTestHelpers::createMouseEvent(WebMouseEvent::MouseDown, WebMouseEvent::Button::Right, WebPoint(30, 30), 0);
+    auto event = FrameTestHelpers::createMouseEvent(WebMouseEvent::MouseDown, WebMouseEvent::ButtonRight, WebPoint(30, 30), 0);
     event.clickCount = 1;
 
     // Make sure the right-click + Copy works in common scenario.
     webView->handleInputEvent(event);
     EXPECT_TRUE(webView->mainFrame()->toWebLocalFrame()->executeCommand("Copy"));
     EXPECT_EQ(WebString("x"), Platform::current()->clipboard()->readPlainText(WebClipboard::Buffer()));
 
     // Clear the clipboard buffer.
     Platform::current()->clipboard()->writePlainText(WebString(""));
     EXPECT_EQ(WebString(""), Platform::current()->clipboard()->readPlainText(WebClipboard::Buffer()));
@@ skipping 338 matching lines @@
     runPendingTasks();
 
     WebElement pluginContainerOneElement = webView->mainFrame()->document().getElementById(WebString::fromUTF8("translated-plugin"));
     pluginContainerOneElement.pluginContainer()->setWantsWheelEvents(true);
 
     runPendingTasks();
     EXPECT_TRUE(webView->page()->frameHost().eventHandlerRegistry().hasEventHandlers(EventHandlerRegistry::WheelEventBlocking));
 }
 
 } // namespace blink