Refactoring button field and its type (2nd try)

chrome/test/remoting/remote_desktop_browsertest.cc

 // Copyright 2013 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/remoting/remote_desktop_browsertest.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
@@ skipping 424 matching lines @@
   SimulateKeyPressWithCode(key, code, keyboard_code, false, shift, false,
                            false);
 }
 
 void RemoteDesktopBrowserTest::SimulateStringInput(const std::string& input) {
   for (size_t i = 0; i < input.length(); ++i)
     SimulateCharInput(input[i]);
 }
 
 void RemoteDesktopBrowserTest::SimulateMouseLeftClickAt(int x, int y) {
-  SimulateMouseClickAt(0, blink::WebMouseEvent::ButtonLeft, x, y);
+  SimulateMouseClickAt(0, blink::WebMouseEvent::Button::Left, x, y);
 }
 
 void RemoteDesktopBrowserTest::SimulateMouseClickAt(
     int modifiers, blink::WebMouseEvent::Button button, int x, int y) {
   // TODO(weitaosu): The coordinate translation doesn't work correctly for
   // apps v2.
   ExecuteScript(
       "var clientPluginElement = "
            "document.getElementById('session-client-plugin');"
       "var clientPluginRect = clientPluginElement.getBoundingClientRect();");
@@ skipping 500 matching lines @@
   ConditionalTimeoutWaiter homeWaiter(
           base::TimeDelta::FromSeconds(5),
           base::TimeDelta::FromMilliseconds(500),
           base::Bind(&RemoteDesktopBrowserTest::IsAppModeEqualTo,
                      base::Unretained(this),
                      "remoting.AppMode.HOME"));
   EXPECT_TRUE(homeWaiter.Wait());
 }
 
 }  // namespace remoting