Refactoring button field and its type (2nd try)

chrome/browser/extensions/api/tab_capture/tab_capture_apitest.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 "base/command_line.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 38 matching lines @@
   void AddExtensionToCommandLineWhitelist() {
     base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
         switches::kWhitelistedExtensionID, kExtensionId);
   }
 
  protected:
   void SimulateMouseClickInCurrentTab() {
     content::SimulateMouseClick(
         browser()->tab_strip_model()->GetActiveWebContents(),
         0,
-        blink::WebMouseEvent::ButtonLeft);
+        blink::WebMouseEvent::Button::Left);
   }
 };
 
 class TabCaptureApiPixelTest : public TabCaptureApiTest {
  public:
   void SetUp() override {
     if (!IsTooIntensiveForThisPlatform())
       EnablePixelOutput();
     TabCaptureApiTest::SetUp();
   }
@@ skipping 393 matching lines @@
       EXPECT_EQ(TabAlertState::TAB_CAPTURING, observer.last_alert_state());
       return;
     }
     content::RunMessageLoop();
   }
 }
 
 }  // namespace
 
 }  // namespace extensions